The ancient town of Olympia, UNESCO World Heritage Site, Peloponnese, Greece, Europe

Statue and Obelisk at Luxor Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Stone Carvings and Hieroglyphs at Karnak Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Stone Carvings and Hieroglyphs at Karnak Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Temple of Vespasianus, Roman Forum, UNESCO World Heritage Site, Rome, Lazio, Italy, Europe

Qasr al-Bint temple inside the ancient Nabatean city, Petra, UNESCO World Heritage Site, Jordan, Middle East

Statue of Ramesses ll, Luxor Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Statue of Ramesses ll, Luxor Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Statue at Karnak Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Pillars of the Great Hypostyle Hall at Karnak Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Stone Carvings and Hieroglyphs at Karnak Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

The ancient town of Olympia, UNESCO World Heritage Site, Peloponnese, Greece, Europe

Temple of Hera at Selinunte, the ancient Greek city on the southern coast of Sicily, Italy, Europe

Statue of Ramesses ll, Luxor Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Stone Carvings and Hieroglyphs at Karnak Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Stone Carvings and Hieroglyphs at Karnak Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

The Temple of Isis at the Philae Temple Complex, UNESCO World Heritage Site, Agilkia Island, Aswan, Egypt, North Africa, Africa

Statue at Karnak Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Statues at Karnak Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Statue at Luxor Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Stone Carvings at Luxor Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Detail of the Obelisk at Luxor Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Statue at Luxor Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Statue at Karnak Temple, Luxor, Thebes, UNESCO World Heritage Site, Egypt, North Africa, Africa

Acropolis of Athens, UNESCO World Heritage Site, Athens, Greece, Europe

Capitolium (Temple to the three main gods), Roman ruin of Thuburbo Majus, Tunisia, North Africa, Africa

Capitolium (Temple to the three main gods), Roman ruin of Thuburbo Majus, Tunisia, North Africa, Africa

Capitolium (Temple to the three main gods), Roman ruin of Thuburbo Majus, Tunisia, North Africa, Africa

Arch of the Temple of Caelestis, Roman ruin of Thuburbo Majus, Tunisia, North Africa, Africa

The Capitol Temples (Capitolium), Roman ruin of Sbeitla, Tunisia, North Africa, Africa

Temple of Caelestis, Roman ruin of Thuburbo Majus, Tunisia. North Africa, Africa

The Capitol Temples (Capitolium), Roman ruin of Sbeitla, Tunisia, North Africa, Africa

Temple of Caelestis, Roman ruin of Thuburbo Majus, Tunisia. North Africa, Africa

The Capitol Temples (Capitolium), Roman ruin of Sbeitla, Tunisia, North Africa, Africa

Capitolium (Temple to the three main gods), Roman ruin of Thuburbo Majus, Tunisia, North Africa, Africa

Capitolium (Temple to the three main gods), Roman ruin of Dougga, UNESCO World Heritage Site, Tunisia, North Africa, Africa

Looking towards the Capitolium (Temple to the three main gods), Roman ruin of Dougga, UNESCO World Heritage Site, Tunisia, North Africa, Africa

Capitolium (Temple to the three main gods), Roman ruin of Dougga, UNESCO World Heritage Site, Tunisia, North Africa, Africa

Looking towards the Capitolium (Temple to the three main gods), Roman ruin of Dougga, UNESCO World Heritage Site, Tunisia, North Africa, Africa

Aerial views of El Castillo and the Ruins of the Mayan temple grounds at Tulum, Quintana Roo, Yucatan, Mexico. Tulum is the site of a pre-Columbian Mayan walled city which served as a major port for Coba, in the Mexican state of Quintana Roo. The ruins are situated on 12 meter 39 ft tall cliffs along the east coast of the Yucatán Peninsula on the Caribbean Sea in the state of Quintana Roo, Mexico. Tulum was one of the last cities built and inhabited by the Maya; it was at its height between the 13th and 15th centuries and managed to survive about 70 years after the Spanish began occupying Mexico. Old World diseases brought by the Spanish settlers appear to have resulted in very high fatalities, disrupting the society, and eventually causing the city to be abandoned.

Aerial views of El Castillo and the Ruins of the Mayan temple grounds at Tulum, Quintana Roo, Yucatan, Mexico. Tulum is the site of a pre-Columbian Mayan walled city which served as a major port for Coba, in the Mexican state of Quintana Roo. The ruins are situated on 12 meter 39 ft tall cliffs along the east coast of the Yucatán Peninsula on the Caribbean Sea in the state of Quintana Roo, Mexico. Tulum was one of the last cities built and inhabited by the Maya; it was at its height between the 13th and 15th centuries and managed to survive about 70 years after the Spanish began occupying Mexico. Old World diseases brought by the Spanish settlers appear to have resulted in very high fatalities, disrupting the society, and eventually causing the city to be abandoned.

Aerial view of Mayan Ruin of Chichen Itza Archaeological Site Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico

El Castillo, The Pyramid of Kukulkán, is the Most Popular Building in the UNESCO Mayan Ruin of Chichen Itza Archaeological Site Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico. Asian tour leder dressed in a maya style.

Monk blessing a woman, in Angkor Wat, Siem Reap, Cambodia

Woman, women, biking, Bridge and South Gate of Angkor Thom, Angkor, Siem Reap, Cambodia

Aspara sculptures in bas-relief on the wall, in Angkor Wat, Siem Reap, Cambodia

Detail, Bayon temple, Angkor Thom, Angkor, Siem Reap, Cambodia

Buddha head in banyan tree roots at Wat Mahathat temple, in Ayutthaya, Thailand

Detail, statues of Asuras on bridge of South Gate, in Angkor Thom, Siem Reap, Cambodia

Monk praying, in Wat Mahathat, Sukhothai Historical Park, Sukhothai, Thailand

Representation, Ramayana epic, Bas-relief carvings, in Bayon temple, Angkor Thom, Angkor, Siem Reap, Cambodia

Temple of Bacchus, Baalbeck, Bekaa Valley, Lebanon

Wat Mahathat, Sukhothai Historical Park, Sukhothai, Thailand

Monk, in Angkor Wat, Siem Reap, Cambodia

Tourists, inside Angkor Wat, Siem Reap, Cambodia

Buddha statue, Central sanctuary, in Prasat Hin Phimai (Phimai Historical Park), Phimai, Nakhon Ratchasima province, Thailand

Tourists, inside Angkor Wat, Siem Reap, Cambodia

Wat Yai Chai Mongkhon Temple, Ayutthaya, Thailand

Aspara sculpture in bas-relief on the wall, in Angkor Wat, Siem Reap, Cambodia

Monk and Buddha statue, in Angkor Wat, Siem Reap, Cambodia

Roman colonnade on the top, general view of Archaeological site, Byblos, Lebanon

Wat Chaiwatthanaram, Ayutthaya, Thailand

Monk praying, in Wat Mahathat, Sukhothai Historical Park, Sukhothai, Thailand

Wat Yai Chai Mongkhon Temple, Ayutthaya, Thailand

Aspara sculptures in bas-relief on the wall, in Angkor Wat, Siem Reap, Cambodia

Wat Yai Chai Mongkhon Temple, Ayutthaya, Thailand

Detail, statues of Asuras on bridge of South Gate, in Angkor Thom, Siem Reap, Cambodia

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

Aspara sculptures in bas-relief on the wall, in Angkor Wat, Siem Reap, Cambodia

A kalan, an historic building at My Son, Quang Nam province, Vietnam

The Doric Temple, Segesta Archaeological Site, Segesta, Province of Trapani, Sicily, Italy

Columns of the Doric Temple of Athena Lindia, the Acropolis, Lindos, Rhodes, Greece

The Erechtheion, at the Acropolis, Athens, Greece

An historic building at My Son, Quang Nam province, Vietnam

Frieze and columns, Temple of Hephaestus, Ancient Agora of Athens, Athens, Greece

The Doric Temple, Segesta Archaeological Site, Segesta, Province of Trapani, Sicily, Italy

Wat Sa Si, in Sukhothai Historical Park, Sukhothai, Thailand

Buddha head in banyan tree roots at Wat Mahathat temple, in Ayutthaya, Thailand

The Great Ball Court in the Mayan Ruins of Chichen Itza Archaeological Site Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico

Aerial view of Mayan Ruin of Chichen Itza Archaeological Site Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico

Wat Mahathat, Sukhothai Historical Park, Sukhothai, Thailand

Wat Si Chum, in Sukhothai historical park, Sukhothai, Thailand

Wat Mahathat, Sukhothai Historical Park, Sukhothai, Thailand

The Church and Nunnery at Chichen Itza Archaeological Site in Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico

Stony stairs of tomb of the High Priest pyramid at Chichen Itza Archaeological Site in Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico

Wat Yai Chai Mongkhon Temple, Ayutthaya, Thailand

The Doric Temple, Segesta Archaeological Site, Segesta, Province of Trapani, Sicily, Italy

Monk embellishing religious sculptures, in Angkor Wat, Siem Reap, Cambodia

Wat Si Chum, in Sukhothai historical park, Sukhothai, Thailand

Temple of Olympian Zeus, Athens, Greece

Temple of Olympian Zeus, Athens, Greece

Wat Chaiwatthanaram, Ayutthaya, Thailand

Wat Ratchaburana temple, Ayuthaya, Thailand

El Castillo, The Pyramid of Kukulkán, is the Most Popular Building in the UNESCO Mayan Ruin of Chichen Itza Archaeological Site Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico

Wat Mahathat, Sukhothai Historical Park, Sukhothai, Thailand

Temple of Hephaestus, Ancient Agora of Athens, Athens, Greece

El Castillo, The Pyramid of Kukulkán, is the Most Popular Building in the UNESCO Mayan Ruin of Chichen Itza Archaeological Site Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico

Wat Yai Chai Mongkhon Temple, Ayutthaya, Thailand

Wat Mahathat, Sukhothai Historical Park, Sukhothai, Thailand

El Castillo, The Pyramid of Kukulkán, is the Most Popular Building in the UNESCO Mayan Ruin of Chichen Itza Archaeological Site Yucatan Peninsula, Quintana Roo, Caribbean Coast, Mexico