The growth of natural trees and green plants in tourist cities in the Kingdom of Saudi Arabia, demolished heritage mud houses and buildings in the old city during the day, ancient architecture in the village of Jalajel in Al Majmaah Governorate, archaeological historical areas and landmarks in the city of Riyadh.
An aesthetic image of the old Diriyah buildings in the city of Riyadh, Al-Bujairi Heritage Village, a historical tourist interface in the Kingdom of Saudi Arabia, tourism in Saudi Arabia, the Saudi founding day, the anniversary of the founding of the Saud
The illuminated courtyards of the Qasr al-Hukm area at night in the city of Riyadh, the social meeting place for the residents of the capital, the mud buildings and ancient buildings of Saudi heritage, tourist archaeological monuments and sites in Saudi Arabia, the historical status of the Masmak Museum, green palm trees.
The ancient architectural art of the walls of Salwa Palace in Al-Bujairi in the Al-Turaif district, the mud buildings and houses in old Diriyah in the city of Riyadh, ancient historical monuments, heritage tourism places in Saudi Arabia
Cultivation of plants and palm trees, the historic Diriyah development project, famous historical tourist places and buildings in Riyadh, the opening of Al-Bujairi Park and View in Riyadh in the Kingdom of Saudi Arabia, historical Saudi landmarks
The ancient architectural engineering art of the walls of Salwa Palace in Al-Bujairi in the Al-Turaif district, historical places to attract visitors from all over the world, the heritage village in the Kingdom of Saudi Arabia, famous cultural tourist attractions, a day in 1727 AD, the anniversary of the founding of the first Saudi state on February 22
Visitors and tourists flock to the historic Masmak Palace Museum in Riyadh in broad daylight, Riyadh’s heritage landmarks, architecture and ancient clay buildings, archaeological tourist places in the Kingdom of Saudi Arabia.
Archeological buildings and mud houses in Al-Turaif neighborhood in old Diriyah, the ancient architectural art of the walls of Salwa Palace in Al-Bujairi in the city of Riyadh, ancient historical monuments, the establishment of the first Saudi state in 17
The ancient architectural engineering art of the walls of Salwa Palace in Al-Bujairi in the Al-Turaif district, ancient mud buildings and houses in old Diriyah in the city of Riyadh, ancient historical monuments, heritage tourism places in Saudi Arabia
The ancient walls of Diriyah in the city of Riyadh, the Kingdom of Saudi Arabia, the historic Al-Turaif neighborhood illuminated at night, a famous Saudi historical cultural center and tourist landmark, traditional geometric architecture made of clay bricks, the heritage village and archaeological buildings in Diriyah
The ancient architectural art of the walls of the Salwa Palace in Al-Bujairi in the Al-Turaif neighborhood, the ancient mud buildings and houses in the old Diriyah in the city of Riyadh, ancient historical monuments, the establishment of the first Saudi s
Ancient cultural history in Riyadh, a close-up of the historic Masmak Palace in the city of Riyadh in the Kingdom of Saudi Arabia, architecture and ancient mud buildings from Saudi heritage, touristic places and landmarks in Saudi Arabia.
Archaeological entertainment places during the day, the historic Diriyah development project, Al-Bujairi Overlook and Park in the Diriyah neighborhood in the city of Riyadh, mud installations built in the old style, areas of tourism and authentic Saudi Arabian civilization, enjoying the famous tourist attractions
Ancient architecture in Salwa Palace in Al-Bujairi, Diriyah, the anniversary of the founding of the first Saudi state, February 22, a close-up of a smiling Saudi Gulf Arab engineer wearing a jacket and helmet discovering the basics of construction for heritage houses and palaces. He used a tablet in the engineering field, on our day 1727 AD.
Cultivation of plants and palm trees, the historic Diriyah development project, famous historical tourist places and buildings in Riyadh, the opening of Al-Bujairi Park and View in Riyadh in the Kingdom of Saudi Arabia, historical Saudi landmarks
Our Day 1727 AD, learning about the art of ancient architecture, the anniversary of the founding of the first Saudi state, February 22, a close-up of a smiling Saudi Gulf Arab engineer wearing a jacket and helmet using a tablet at Salwa Palace in Al-Bujairi, Diriyah, building basics for heritage houses and palaces
The inheritance of the passion for raising horses among the Saudis, the history of the first Saudi state, an introductory plaque about the domestication of purebred Arabian horses in the historic Salwa Palace, the Diriyah museums at Al-Bujairi overlook in the Al-Turaif district, the historic heritage village in the city of Riyadh, a famous historical cultural and tourist attraction and museum.
The art of architecture and ancient mud buildings, palm trees around the historical Masmak Palace Museum in the city of Riyadh in broad daylight, interest in landscaping and green plants in archaeological tourist sites in the Kingdom of Saudi Arabia, heritage landmarks of Riyadh
Using a tablet in engineering, pointing to something, discovering the ancient art of architecture and building mud houses, two Saudi Gulf Arab engineers wearing jackets and helmets standing on the ruins of Salwa Palace in Al-Bujairi, Diriyah, Dina Day 1727 AD, the anniversary of the founding of the first Saudi state, February 22
A historical and heritage landmark and park in the old folk style, enjoying the ruins and mud buildings in the Al-Bujairi neighborhood in the city of Diriyah in Riyadh, a national cultural and tourist center, a close-up of a Saudi Arab Gulf family standin
A wooden door with an ancient Arab architectural design, the historic Masmak Palace in Riyadh, Saudi Arabia, an ancient archaeological door, historical landmarks in Riyadh, ancient architecture, tourism in Saudi Arabia
Indicative sign for the service area and car parking in Diriyah in Riyadh in the Kingdom of Saudi Arabia, car traffic on Al-Bujairi Road, famous archaeological and historical tourist places, the historical Diriyah development project, historical Saudi lan
Enjoying the famous tourist attractions, archaeological entertainment places during the day, the historic neighborhoods of Diriyah, the mud walls built in the old style, tourist areas and authentic Saudi Arabian civilization, Al-Bujairi Overlook and Park in the Diriyah neighborhood in the city of Riyadh.
Mud walls built in the old style, tourist areas and authentic Saudi Arabian civilization, enjoying the famous tourist attractions, archaeological entertainment places during the day, the historic Diriyah development project, Al-Bujairi Overlook and Park in the Diriyah neighborhood in the city of Riyadh
Pointing to something, discovering the ancient art of architecture and building mud houses, two Saudi Gulf Arab engineers wearing jackets and helmets standing on the ruins of Salwa Palace in Al-Bujairi, Diriyah, Dina Day 1727 AD, the anniversary of the founding of the first Saudi state, February 22, using the tablet in engineering
Destroyed heritage mud houses and buildings in the Old City during the day, ancient architecture in the village of Jalajel in Al Majmaah Governorate, archaeological areas and landmarks in the city of Riyadh, the growth of natural trees and green plants in tourist cities in the Kingdom of Saudi Arabia.
The establishment of the first Saudi state in 1727 AD, archaeological buildings and mud houses in the Al-Turaif neighborhood in the old Diriyah, the ancient architectural art of the walls of Salwa Palace in Al-Bujairi in the city of Riyadh, ancient histor
Commemoration of the National Day on September 23, famous cultural tourist attractions, ancient buildings built in the ancient mud style in the heritage village, the anniversary of the founding of the first Saudi state on February 22, the day of our religion 1727 AD, Al-Bujairi Overlook and Park in the Al-Turaif neighborhood in Diriyah in the city of Riyadh.
Historical landmarks of Riyadh, a picture from inside the historic Masmak Palace Museum in the city of Riyadh in Saudi Arabia, the traditional Masmak Palace, ancient architecture, tourist archaeological sites in Saudi Arabia
Trees and green plants, Masmak Palace Museum in the city of Riyadh in the Kingdom of Saudi Arabia, historical monuments, ancient architecture, tourism in Saudi Arabia
A picture of the interior of the ancient buildings and mud houses in the Al-Turaif neighborhood, the ancient architectural art of the old Diriyah walls in the city of Riyadh in the Kingdom of Saudi Arabia, ancient popular historical monuments, heritage pl
A famous Saudi historical cultural tourist attraction and museum, the ancient Diriyah museums in the city of Riyadh, the Kingdom of Saudi Arabia, the historic Al-Turaif neighborhood illuminated at night, traditional geometric architecture made of mud bricks, the historical heritage village and archaeological buildings.
Symbol of Saudi historical heritage, Diriyah Museums at Al-Bujairi View in Al-Turaif District, the historic heritage village in the city of Riyadh, a famous Saudi tourist cultural center and landmark, rare artifacts in Salwa Palace
An ancient archaeological door, historical landmarks of Riyadh, a wooden door with an ancient Arab architectural design, the historic Masmak Palace in Riyadh in Saudi Arabia, ancient architecture, tourism in Saudi Arabia
Old villages and cities in the city of Riyadh, historical monuments and mud houses in residential neighborhoods, famous tourist heritage places in the Kingdom of Saudi Arabia, traditional-style architecture
A park and a historical heritage landmark in the old folk style, enjoying the ruins and mud buildings in the Al-Bujairi neighborhood in the city of Diriyah in Riyadh in the daytime, a national cultural and tourist center, a picture from the side of an Ara
Ancient popular historical monuments, heritage places to attract tourists to Saudi Arabia, a picture of the interior of the ancient buildings and mud houses in the Al-Turaif neighborhood, the ancient architectural art of the ancient walls of Diriyah in th
A wooden door with an architectural design in the old clay style, the historic Masmak Palace Museum in the city of Riyadh in the Kingdom of Saudi Arabia, famous tourist places and monuments
Al-Masmak Historical Palace Museum in Riyadh in the Kingdom of Saudi Arabia, the flag of the Kingdom of Saudi Arabia, Saudi Flag Day, historical landmarks of Riyadh, ancient architecture, tourist heritage sites in Saudi Arabia
A signboard and indicative sign for Al-Turaif Market in the Historical Museum, a famous Saudi historical cultural center and tourist landmark, Diriyah Museums at Al-Bujairi View in Al-Turaif District, the historical heritage village in the city of Riyadh, the history of the first Saudi state.
A wooden sign with the ruins of the palace of Imam Abdullah bin Saud written on it, the ancient mud buildings and houses in the old Diriyah in the city of Riyadh, the ancient architectural art of the walls of the Salwa Palace in Al-Bujairi in the Al-Turai
Ancient historical monuments, ancient buildings and mud houses in Al-Turaif neighborhood in old Diriyah, the ancient architectural art of the walls of Salwa Palace in Al-Bujairi in Riyadh, the establishment of the first Saudi state in 1727 AD, heritage to
A picture from the back of a tourist man wandering in the alley surrounding the historic Masmak Palace in the city of Riyadh in Saudi Arabia, historical landmarks of Riyadh, ancient architecture, archaeological tourist heritage sites in Saudi Arabia
The Saudi national flag flagpole flying in the sky, the historic Masmak Palace in the city of Riyadh in the Kingdom of Saudi Arabia, the architecture and ancient mud buildings of Saudi heritage, the interest in planting palm trees in tourist places and monuments in Saudi Arabia.
Al-Arafah Palace in the village of Maz’al in Al-Quwaiyah Governorate in Saudi Arabia, a mud-brick castle, heritage palaces and castles in the capital, Riyadh, in the Kingdom, ancient historical tourist attractions, mud-brick buildings from Saudi heritage
Archaeological historical buildings in the Heritage Village, a cultural tourist center in Al-Bujairi Park, celebration of National Day on September 23 in the Jewel of the Kingdom, the old walls of Diriyah in the city of Riyadh, the Saudi founding day 1727 AD, Saudi landmarks in the popular Al-Turaif neighborhood
The historic Diriyah development project, mud walls built in the old style, tourist areas and authentic Saudi Arabian civilization, enjoying the famous tourist attractions, archaeological entertainment places during the day, Al-Bujairi Overlook and Park in the Diriyah neighborhood in the city of Riyadh
An explanation of the history of the first Saudi state, an introductory sign about the miserliness of the Prophet and wisdom and proverbs, a famous Saudi historical cultural and tourist center and landmark, the Diriyah museums at Al-Bujairi overlook in the Al-Turaif district, the historical heritage village in the city of Riyadh.An explanation of the history of the first Saudi state, an introductory sign about the miserliness of the Prophet and wisdom and proverbs, a famous Saudi historical cult
Architectural designs and arts for old-style mud buildings, the historic Diriyah development project, a close-up of the wooden doors and walls of Salwa Palace in Al-Bujairi in the Al-Turaif district, mud buildings and houses in old Diriyah in the city of Riyadh, archaeological and tourist sites in the Kingdom.
Palm trees and green plants in Diriyah View illuminated at night, popular heritage tourist places and attractions to attract tourists to the Kingdom of Saudi Arabia, ancient historical areas in the city of Riyadh.
Popular events and celebrations, a back photo of the Ardha band in heritage tourist places in Saudi Arabia, ancient mud buildings and houses in old Diriyah in the city of Riyadh, ancient architectural art of the walls of Salwa Palace in Al-Bujairi in the Al-Turaif district, ancient historical monuments.
Ancient architecture, historical tourist places in Saudi Arabia, a small model of the historical heritage museum of Masmak Palace in the city of Riyadh in the Kingdom of Saudi Arabia, historical landmarks of Riyadh, white background
Popular mud buildings in the city of Qassim, ancient archaeological places and landmarks in the Kingdom of Saudi Arabia, ancient architectural engineering art, museums to attract tourists to Saudi Arabia, Al-Uqailat Heritage Museum in the Buraydah area
Ancient cultural history in Riyadh, a close-up of the historic Masmak Palace in the city of Riyadh in the Kingdom of Saudi Arabia, architecture and ancient mud buildings from Saudi heritage, touristic places and landmarks in Saudi Arabia.
Ancient historical monuments, popular events and celebrations, a back photo of the Ardha band in heritage tourist places in Saudi Arabia, ancient mud buildings and houses in old Diriyah in the city of Riyadh, ancient architectural art of the walls of Salwa Palace in Al-Bujairi in the Al-Turaif district.
A cultural tourist center in Al-Bujairi Park, the ancient walls of Diriyah in the city of Riyadh, the celebration of National Day on September 23 in the Jewel of the Kingdom, the popular archaeological buildings in the heritage village, the Saudi founding day 1727 AD, Saudi landmarks in the historic Al-Turaif neighborhood.
Al-Bujairi Park and View in Al-Turaif District in Old Diriyah, enjoying tourist trips in cultural places, famous landmarks of the city of Riyadh, Day of Our Day 1727 AD, anniversary of the founding of the first Saudi state on February 22, walls of Salwa Palace in the Kingdom of Saudi Arabia during the day
Interest in planting trees and green plants, Al-Bujairi Overlook and Park in the Diriyah neighborhood in the city of Riyadh, mud walls built in the old style, tourism areas and authentic Saudi Arabian civilization, enjoying famous tourist attractions, archaeological entertainment places during the day.
Archaeological historical landmarks, Masmak Palace Museum in Riyadh, Saudi Arabia, green trees and plants, ancient architecture, tourism in Saudi Arabia
A creative silhouette of the heritage village of Al-Ula in the northwest of Saudi Arabia, a top view of the city of Al-Ula and the surrounding mountains at sunset, tourist places in Saudi Arabia, historical and ancient monuments in the old town of Al-Ula,
Deep wells built in the old clay style, a traditional water well made of stones and clay in the village of Ushaiqar in Al-Shaqra Governorate, popular neighborhoods and alleys, historical cities and villages in the Kingdom of Saudi Arabia, famous tourist places and landmarks
One of the historical forts of the Masmak Fort in the city of Riyadh in the Kingdom of Saudi Arabia, historical landmarks of Riyadh, the heritage Masmak Palace, ancient-style architecture, archaeological tourist places in Saudi Arabia
Al-Ula heritage village in northwest Saudi Arabia, top view of the city of Al-Ula and the surrounding mountains, tourism in Saudi Arabia, ancient historical and archaeological monuments in the old town of Al-Ula, palm trees near the mountainous heights, S
The Museum of the Unification of Saudi Arabia, the distinguished walls in the old architectural building, the historic Masmak Palace in the city of Riyadh, ancient historical tourist attractions, a close-up of a smiling Saudi Arabian Gulf man wearing the
Al-Masmak Palace Historical Heritage Museum in the Kingdom of Saudi Arabia, historical landmarks of the city of Riyadh, ancient architecture, archaeological tourist sites, tourist attractions from all over the world
Interest in planting palm trees and green plants in tourist cities in the Kingdom of Saudi Arabia, demolished heritage mud houses and buildings in the old city during the day, ancient architecture in the village of Jalajel in Al Majmaah Governorate, archaeological historical areas and landmarks in the city of Riyadh.
Ancient mud buildings and houses in the Al-Turaif neighborhood, the palace of Prince Mishari bin Saud, ancient architectural art in Diriyah in the city of Riyadh, ancient popular historical monuments in the Kingdom of Saudi Arabia, heritage places to attract tourists, a UNESCO World Heritage Site
The ancient walls of Diriyah in the city of Riyadh in the Kingdom of Saudi Arabia, the historical Al-Turaif neighborhood, a cultural and tourist center, the celebration of the National Day in the jewel of the Kingdom, the Day of Flag Heritage Village, the
The Heritage Al-Maqar Palace in the city of Al-Namas in Asir, the architectural engineering art on the Islamic character and the culture of Islamic civilization, the first record in Islamic history of the handwritten manuscripts of the Holy Qur’an, landma
Our Day 1727 AD, the anniversary of the founding of the first Saudi state, February 22, the use of technical devices in engineering, the ancient art of architecture and the basics of building mud houses, a picture from the back of two Saudi Gulf Arab engineers wearing a protective jacket and helmet on the ruins of Salwa Palace in Al-Bujairi, Diriyah.
Islamic architecture in the old Najdi style in the historic city of Riyadh, a thick heritage mud wall, heritage architecture, famous landmarks and tourist places in the Kingdom of Saudi Arabia
Buildings made of stones and tree trunks, the foggy atmosphere in Al-Hajra Governorate, the mountain peaks and heights in the historic village of Wadi Al-Rama in the Al-Baha region in Saudi Arabia, famous mountainous tourist attractions in the Kingdom, the traditional architectural design of the village houses
Archaeological and tourist sites in the Kingdom, architectural designs and arts for old-style mud buildings, the historic Diriyah development project, wooden doors and walls of Salwa Palace in Al-Bujairi in the Al-Turaif district, mud buildings and houses in old Diriyah in the city of Riyadh.
Historical civilization in Riyadh, a close-up of the historic Al-Masmak Palace in the city of Riyadh in the Kingdom of Saudi Arabia, architecture and ancient mud buildings from Saudi heritage, touristic places and landmarks in Saudi Arabia.
Ancient historical places and landmarks to attract tourists, a view of one of the streets of Ashkeer Heritage Village in Shaqra Governorate in the city of Riyadh at sunset, originality and heritage in the Kingdom of Saudi Arabia, old sofas and mud houses
Old Arab architectural style, a close-up of a wooden roof of a house in one of the popular neighborhoods in the village of Ushaiqar in the Kingdom of Saudi Arabia, famous historical landmarks and places in the city of Riyadh, mud houses and buildings in the Shaqra tourist governorate
Old buildings in Diriyah in the city of Riyadh, Saudi Arabia, green palm trees, archaeological landmarks of Riyadh, historical mud buildings, a Saudi tourist interface
Popular archaeological buildings in the city of Riyadh, a cultural and tourist center in Al-Bujairi Park, celebration of National Day on September 23 in the Jewel of the Kingdom, pottery jars in the heritage village, Saudi founding day 1727 AD, Saudi landmarks in the historic Turaif neighborhood
Al-Ula heritage village in northwest Saudi Arabia, top view of the city of Al-Ula and the surrounding mountains, tourism in Saudi Arabia, ancient historical and archaeological monuments in the old town of Al-Ula, palm trees near the mountainous heights, S
The historical beauty of the heritage village of Al-Ula in the city of Al-Ula, western Saudi Arabia, tourist places in Saudi Arabia, ancient historical and archaeological landmarks in the old town of Al-Ula, ancient mud buildings, the ancient Arab Islamic
An antique coffee pot in the historic Masmak Palace Museum in Riyadh in the Kingdom of Saudi Arabia, historical landmarks of Riyadh, ancient architecture, archaeological tourist heritage sites in Saudi Arabia
Rare artifacts in Salwa Palace, a symbol of Saudi historical heritage, Diriyah museums at Al-Bujairi overlook in the Al-Turaif neighborhood, the historical heritage village in the city of Riyadh, a famous Saudi tourist cultural center and landmark.
The historical beauty of Al-Ula Heritage Village, the old town of Al-Ula, an old open museum, deserted labyrinth, ancient historical and archaeological landmarks, ancient mud buildings, the ancient Arab Islamic civilization of Al-Ula, Al-Ula Governorate,
Jalajel village in Al Majmaah Governorate, archaeological historical areas and landmarks in the city of Riyadh in the Kingdom of Saudi Arabia, demolished heritage mud palaces and buildings during the day, ancient-style architectural art in the old city.
The ancient walls of Diriyah in the city of Riyadh in the Kingdom of Saudi Arabia, the historical Al-Turaif neighborhood, a cultural and tourist center, the celebration of the National Day in the jewel of the Kingdom, the Day of Flag Heritage Village, the
Celebrating National Day on September 23 in the Jewel of the Kingdom, the ancient walls of Diriyah in the city of Riyadh, a cultural and tourist center in Al-Bujairi Park, popular archaeological buildings in the heritage village, Saudi Founding Day 1727 AD, Saudi landmarks in the historic Turaif neighborhood.
Islamic architecture in the old Najdi style in the historic city of Riyadh, a thick heritage mud wall, heritage architecture, famous landmarks and tourist places in the Kingdom of Saudi Arabia
Archaeological tourist places, tourist attractions from all over the world, a picture from inside the Masmak Palace Museum, historical heritage in the Kingdom of Saudi Arabia, landmarks of the historical city of Riyadh, ancient architecture
A close-up of a mud wall with ancient Arabic designs, the historic Masmak Palace in the city of Riyadh in Saudi Arabia, the historical landmarks of Riyadh, ancient architecture, archaeological tourist heritage sites in Saudi Arabia
alace in the city of Riyadh, the Kingdom of Saudi Arabia, a close-up of a clay wall with ancient Arabic designs, famous tourist attractions, ancient architectural art, historical archaeological sites
Historical heritage palaces and castles, Al-Azlam Stone Castle in the Tabuk region, architectural engineering art in the ancient Arab-Islamic style, famous tourist attractions in the Kingdom of Saudi Arabia
A cultural tourist center in Al-Bujairi Park, celebrating National Day on September 23 in the Jewel of the Kingdom, popular archaeological buildings in the heritage village, the ancient walls of Diriyah in the city of Riyadh, Saudi founding day 1727 AD, Saudi landmarks in the historic Al-Turaif neighborhood
The art of ancient Arab architectural engineering design for the mosque of the heritage village of Ushaiqar, archaeological buildings in Shaqra Governorate, ancient historical landmarks in the city of Riyadh, famous tourist places in Saudi Arabia, areas of worship and performing religious duties in popular villages.
Tourist archaeological sites in Saudi Arabia, historical landmarks of Riyadh, the historic Masmak Palace Museum in the city of Riyadh in the Kingdom of Saudi Arabia, the traditional Masmak Palace, ancient architecture
Ancient archaeological places, mud buildings and houses illuminated at night, gestures of happiness and joy, a smiling Saudi Gulf Arab young man wearing the traditional dress and shemagh standing in front of the walls of Salwa Palace, visiting tourist areas in the Kingdom of Saudi Arabia
Old-style architectural designs and arts, a close-up of the walls built of clay, Riyadh’s historical monuments, famous tourist places in the Kingdom of Saudi Arabia, nobility, authenticity and adherence to Saudi heritage
The sky of the village of Ushaiqar in Shaqra Governorate at sunset, famous historical and cultural places and landmarks, ancient ancient mud buildings and houses in the Kingdom of Saudi Arabia, attracting and attracting tourists from all over the world.
Use the tablet device in the engineering field, on our day 1727 AD, learning about the ancient art of architecture in Salwa Palace in Al-Bujairi, Diriyah, the anniversary of the founding of the first Saudi state, February 22, a smiling Saudi Arabian Gulf engineer wearing a jacket and helmet discovers the basics of construction for heritage houses and palaces.
The ancient architectural engineering art of the walls of Salwa Palace in Al-Bujairi in the Al-Turaif district, ancient mud buildings and houses in old Diriyah in the city of Riyadh, ancient historical monuments, heritage tourism places in Saudi Arabia
The historical beauty of the heritage village of Al-Ula in the city of Al-Ula in the Kingdom of Saudi Arabia, tourist places in Saudi Arabia, ancient historical and archaeological landmarks in the old town of Al-Ula, the beauty of the rock formations in t
Discovering the ancient art of architecture, using the tablet in engineering, two Saudi Gulf Arab engineers wearing jackets and protection helmets standing on the ruins of Salwa Palace in Al-Bujairi, Diriyah, the basics of building mud houses, Dina Day 1727 AD, the anniversary of the founding of the first Saudi state, February 22