Detail of Sheikh Zayed Grand Mosque in Abu Dhabi, United Arab Emirates

Ancient Propylaea building entrance, The Acropolis, UNESCO, Athens, Greece

Erechtheion (Temple of Athena Polias), The Acropolis, UNESCO, Athens, Greece

Aerial view of Qasr al-Farid, the largest tomb within Site of Hegra (Madain Salih), UNESCO, in the area of AlUla, Medina Province, Saudi Arabia

Tomb of Lihyan, son of Kuza (Qasr al-Farid), carved into sandstone outcrop within the Site of Hegra, UNESCO, AlUla, Medina Province, Saudi Arabia

Iconic Big Ben and Houses of Parliament, UNESCO, Westminster, London, England, United Kingdom

Chapel of the Langue of Castile in St. John's Co-Cathedral, UNESCO, Valletta, Malta

Astronomical instruments of Jantar Mantar, UNESCO, Jaipur, Rajasthan, India

Astronomical instruments of Jantar Mantar, UNESCO, Jaipur, Rajasthan, India

Mehrangarh Fort, Jodhpur, Rajasthan, India

Humayun's Tomb, UNESCO, Delhi, India

Foreign Ministry building, Itamaraty Palace (Palace of the Arches), designed by Oscar Niemeyer, UNESCO World Heritage Site, Brasilia, Federal district, Brazil, South America

Church of St. Francis, UNESCO World Heritage Site, Porto, Norte, Portugal, Europe

Monumental Fountain (Fonte da Ribeira) with St. John the Baptist Statue on Ribeira Square, UNESCO World Heritage Site, Porto, Norte, Portugal, Europe

Hatshepsut's Temple at Deir el-Bahari site, UNESCO World Heritage Site, Thebes, Egypt, North Africa, Africa

Stepped Pyramid of Djoser, the first pyramid, complex of Saqqara, UNESCO World Heritage Site, Egypt, North Africa, Africa

Temple of Amun, Temple complex of Karnak, UNESCO World Heritage Site, Thebes, Egypt, North Africa, Africa

Temple of Amun, Temple complex of Karnak, UNESCO World Heritage Site, Thebes, Egypt, North Africa, Africa

Tomb of Seti I, Valley of the Kings, UNESCO World Heritage Site, Thebes, Luxor, Egypt, North Africa, Africa

Temple of Ramesses III, Medinat Habu, UNESCO World Heritage Site, Thebes, Luxor, Egypt, North Africa, Africa

The Temple of Ramesses II (The Ramesseum), UNESCO World Heritage Site, Thebes, Luxor, Egypt, North Africa, Africa

The Temple of Ramesses II (The Ramesseum), UNESCO World Heritage Site, Thebes, Luxor, Egypt, North Africa, Africa

The Temple of Ramesses II (The Ramesseum), UNESCO World Heritage Site, Thebes, Luxor, Egypt, North Africa, Africa

Egyptian Museum, Cairo, Egypt, North Africa, Africa

Matriz de Santa Maria de Valega church interior, Ovar, Aveiro, Portugal, Europe

Sultan Qaboos Grand Mosque of Nizwa, Ad Dakhiliyah Region, Sultanate of Oman, Arabian Peninsula

Tomb carved into sandstone rock of Jabal Banat (Qasr Al-Bint) area in site of Hegra (Madain Salih), UNESCO, AlUla, Medina Province, Saudi Arabia

Interior of St. Aubin's Cathedral, Late Baroque style, Namur, Wallonia, Belgium

Ranakpur Jain temple (Chaturmukha Dharana Vihara), Ranakpur, Rajasthan, India

City Palace, Udaipur, Rajasthan, India

The Monumental Bullring (La Monumental), 1914 Art Nouveau concerts building, with a bullfighting history museum inside, Barcelona, Catalonia, Spain, Europe

Temple of Amun, Temple complex of Karnak, UNESCO World Heritage Site, Thebes, Egypt, North Africa, Africa

The Monumental Bullring (La Monumental), 1914 Art Nouveau concerts building, with a bullfighting history museum inside, Barcelona, Catalonia, Spain, Europe

Architectural detail of the Monumental Arch to the Artillery Force, constructed in the 19th century, as tribute to the First Artillery Regiment, Piazza Vittorio Veneto, Turin, Piedmont, Italy, Europe

Ottoman monumental gate, La Goulette, Tunisia, North Africa, Africa

Cloister of the Clarisses, with the unique addition of majolica tiles in Rococo style, Santa Chiara complex, Naples, Campania region, Italy, Europe

View of Cathedral-Basílica de Santa María de Mallorca from Passeig Marítime, Palma de Mallorca, Majorca, Balearic Islands, Spain, Mediterranean, Europe

The Monumental Gateway to the Arab Citadel, built in 1260, Aleppo, UNESCO World Heritage Site, Syria, Middle East

Molecule Man, Monumental sculpture by Jonathan Borofsky, Spree River, Berlin, Germany, Europe

The Monumental Gateway to the Arab Citadel, built in 1260, Aleppo, UNESCO World Heritage Site, Syria, Middle East

Inside Kumbhalgarh Fort, looking towards Cloud Palace, Rajasthan, India, Asia

Metropolitan and Primatial Cathedral Basilica of Santa Tecla (Tarragona Cathedral), Tarragona, Catalonia, Spain

Lecce Cathedral (Cathedral of Maria Santissima Assunta and Sant'Oronzo), Lecce, Salento, Apulia, Italy

Lecce Cathedral (Cathedral of Maria Santissima Assunta and Sant'Oronzo), Lecce, Salento, Apulia, Italy

Cathedral of Santiago de Compostela (Cathedral of Saint James of Compostela), UNESCO, Santiago de Compostela, Galicia, Spain

Church of Santa Maria Maggiore, San Pietro monumental complex, Monte Sant'Angelo, UNESCO, Foggia, Apulia, Italy

Malmesbury Abbey, Wiltshire, England, United Kingdom

Church of Santa Maria Maggiore, San Pietro monumental complex, Monte Sant'Angelo, UNESCO, Foggia, Apulia, Italy

Lecce Cathedral, Cathedral of Maria Santissima Assunta and Sant'Oronzo, Lecce, Salento, Apulia, Italy

Basilica of the Holy Sepulchre, Barletta, Barletta-Andria-Trani, Apulia, Italy

Cathedral Basilica of Santa Maria della Madia, Monopoli, Bari, Apulia, Italy

The Monumental Cemetery, more than just a simple cemetery, is an extraordinary outdoor museum, Milan, Lombardy, Italy, Europe

Monumental Gate, flamboyant 16th century, La Martyre church enclosure, church and steeple, La Martyre, Finistere, Brittany, France, Europe

Monumental Gate, flamboyant 16th century style showing Christ on the cross flanked by the two thieves, La Martyre church enclosure, La Martyre, Finistere, Brittany, France, Europe

Carving on a war memorial, St Petersburg, Russia.

The Monumental Cemetery, more than just a simple cemetery, is an extraordinary outdoor museum, Milan, Lombardy, Italy, Europe

Monumental arch, Palmyra, UNESCO World Heritage Site, Syria, Middle East

Monumental arch at archaeological site, with Arab castle beyond, Palmyra, UNESCO World Heritage Site, Syria, Middle East

The Monumental Cemetery, more than just a simple cemetery, is an extraordinary outdoor museum, Milan, Lombardy, Italy, Europe

Puente Monumental de Arganzuela bridge, Virgen del Puerto Park , Madrid Rio, Madrid, Spain, Europe

Spain, Catalonia, Barcelona, Plaza De Toros El Monumental, Entrance Gate

Inside Basílica de Santa María la Real de Covadonga catholic church in Cangas de Onis, Picos de Europa, Asturias, Spain, Europe. In 1777 a fire destroyed the old temple, which stood adjacent to the Holy Cave where Our Lady of Covadonga is revered. It was then decided to raise a new church as a monumental sanctuary, raising donations from all of Spain; the plan was opposed by the local council, as the canons wanted to rebuild the temple of the Holy Cave and build an ambitious sanctuary that had once been designed by Ventura Rodríguez, but never completed. One century later, the project was resumed by King Alfonso XII of Spain, who was interested in completing this work. The classic design of Ventura Rodríguez was very difficult and expensive and was replaced by a new neo-Medieval design.

Our Lady of Covadonga. The Blessed Virgin Mary, and a Marian shrine devoted to her at Basílica de Santa María la Real de Covadonga catholic church in Cangas de Onis, Picos de Europa, Asturias, Spain, Europe. In 1777 a fire destroyed the old temple, which stood adjacent to the Holy Cave where Our Lady of Covadonga is revered. It was then decided to raise a new church as a monumental sanctuary, raising donations from all of Spain; the plan was opposed by the local council, as the canons wanted to rebuild the temple of the Holy Cave and build an ambitious sanctuary that had once been designed by Ventura Rodríguez, but never completed. One century later, the project was resumed by King Alfonso XII of Spain, who was interested in completing this work. The classic design of Ventura Rodríguez was very difficult and expensive and was replaced by a new neo-Medieval design.

Temple of Bacchus, Baalbeck, Bekaa Valley, Lebanon

Entrance, Temple of Bacchus, Baalbeck, Bekaa Valley, Lebanon

The Great Sphinx and Pyramid of Khafre, also known as Pyramid of Chephren, Giza, Cairo, Egypt

Great Sphinx and Great Pyramid of Giza, also known as Pyramid of Khufu and Pyramid of Cheops, Giza, Cairo, Egypt

Arab Baths Cultural Center at Villardompardo Palace, Jaen city. Andalusia, Spain

Pont du Gard, Languedoc Roussillon region, France, Unesco World Heritage Site. Roman Aqueduct crosses the River Gardon near Vers-Pon-du-Gard Languedoc-Roussillon with 2000 year old

A Swiss Guard during Palm Sunday mass officiated by Pope Francis in Saint Peter's Square

Palm Sunday mass officiated by Pope Francis in Saint Peter's Square

Potala palace, former Dalai Lama residence in Lhasa in Tibet. The Potala Palace is a dzong fortress in the city of Lhasa, in Tibet. It was the winter palace of the Dalai Lamas from 1649 to 1959, has been a museum since then, and is a World Heritage Site since 1994.

Arab Baths Cultural Center at Villardompardo Palace, Jaen city. Andalusia, Spain

View over illuminated roof deck of restaurant Hotel Stein to old town with Salzburg Cathedral, St. Peter's Archabbey, Franciscan Church, City Hall Tower and Hohensalzburg Fortress, largest, fully-preserved fortress in central Europe, in the evening, Salzburg, Salzburg, Austria, Since 1996 historic centre of the city part of the UNESCO World Heritage Site

Changing of the guard at the Eternal Flame in the Mamayev Kurgan memorial complex next to the giant Motherland Ruf statue, Volgograd, Volgograd Oblast, Russia, Europe

Quadriga, horse and chariot sculpture on Brandenburg Gate, in the background the Reichstag, Berlin

Angola; Huila Province; Lubango; Lookout point on the outskirts with the monumental statue of Christo Rei

Monument outside the Gerhardt Mill (one of the few remaining buildings from the Battle of Stalingrad in World War II), Volgograd, Volgograd District, Russia, Europe

Yak-3 aircraft from World War II exhibited in front of the Volgograd Panorama Museum, Volgograd, Volgograd District, Russia, Europe

View over Old Town with Hohensalzburg Fortress, largest, fully-preserved fortress in central Europe, Salzburg Cathedral, Franciscan Church, St. Peter's Archabbey and Collegiate Church, built by Johann Bernhard Fischer von Erlach, Salzburg, Salzburg, Austria, Since 1996 historic centre of the city part of the UNESCO World Heritage Site

View over illuminated roof deck of restaurant Hotel Stein to old town with Salzburg Cathedral and Hohensalzburg Fortress, largest, fully-preserved fortress in central Europe, in the evening, Salzburg, Salzburg, Austria, Since 1996 historic centre of the city part of the UNESCO World Heritage Site

Monumental buildings at night, Huangpu, Shanghai, China, Asia

Desert castle Qasr Kharana, Jordan

Cardo Maximus (main street) with triumphal arch, Jerash, the ancient Gerasa, Jordan

Desert castle Quseir Amra (UNESCO World Heritage Site), Jordan

Desert castle Qasr Kharana, Jordan

Monumental head of a medusa, upside down, Yerebatan Sarayi, Byzantine cistern, Sultanahmet, Istanbul, Turkey

Monumental ceiling painting by Johannes Zick, Gothic, Baroque style, city parish church, Simultaneum, St. Martin, Biberach an der Riss, Baden-Wuerttemberg, Germany, Europe

Monumental ceiling painting by Johannes Zick, Gothic, Baroque style, city parish church, Simultaneum, St. Martin, Biberach an der Riss, Baden-Wuerttemberg, Germany, Europe

Metropolis Building, 1910, Edificio Metropolis, on the Gran Via with its monumental angel statue, Madrid, Spain, Iberian Peninsula, Europe

Molecule Man, monumental metal sculpture in the Spree river, human figures with holes, Treptow district, Berlin, Germany, Europe

The impressive eighth-century Moorish castle of Almodóvar del Río perches high above the Guadalquivir river valley. Aerial view. Drone shot. Córdoba province, Andalusia, Spain, Europe

The impressive eighth-century Moorish castle of Almodóvar del Río perches high above the Guadalquivir river valley. Floodlit at dusk. Drone shot. Córdoba province, Andalusia, Spain, Europe

Ruins of the Roman Temple of Artemis, Jerash, the ancient Gerasa, Jordan

The oval forum and the south end of the cardo maximus (main street) of Jerash, the ancient Gerasa, Jordan

Columns of the Roman Temple of Artemis, Jerash, the ancient Gerasa, Jordan

The oval forum and the south end of the cardo maximus (main street) of Jerash, the ancient gerasa, Jordan

Fingers of the Statue of Hercules and the Jordanian Flag in front of the Archaeological Museum, Jebel al-Qala, Amman, Jordan

Cardo Maximus (main street) with triumphal arch, Jerash, the ancient Gerasa, Jordan

Ruins and columns of the Roman Temple of Artemis, Jerash, the ancient Gerasa, Jordan