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

The Roman ruins, Timgad, UNESCO World Heritage Site, Algeria, North Africa, Africa

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

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

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 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

Mosaics at the archaeological site, Paphos, UNESCO World Heritage Site, Cyprus, Europe

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

Historic site medieval village ruins and 15th Century Carron Church with graveyard, County Clare, West of Ireland

Historic site medieval village ruins and 15th Century Carron Church with graveyard, County Clare, West of Ireland

Mosaic, House of Marcus Lucretius in Via Stabiana, Roman Pompeii, UNESCO World Heritage Site, near Naples, Campania, Italy, Europe

Old colonial house in Grand Bassam, UNESCO World Heritage Site, Ivory Coast, West Africa, Africa

Via dell'Abbondanza, the main ancient city street with stones and house numbering, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Thermopolium Via Delle Terme, remains of establishment selling ready-to-eat food on the streets of Pompeii Forum, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Stone street with raised blocks, city street with stepping stones allowing vehicles and pedestrians to cross the street, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Basilica remains, ancient ruins with standing columns surrounding the Forum area, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Remains of the Casa di Pansa (House of Pansa), pool in the peristyle with Ionic capitals at the atrium, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Casa e Thermopolium di Vetutitus Placidus, a private house where hot food was served, with lararium room wall painting, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Street paved in a cobblestone fashion, the main ancient city street with stepping stones, raised blocks and houses, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Casa di Venus atrium peristyle colonnade, frescoes on House of D. Lucretii Satrii Valentes, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Casa di Venus atrium peristyle colonnade, frescoes on House of D. Lucretii Satrii Valentes, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Casa di Venus fresco of Aphrodite lying on a conch shell with nymphs at House of D. Lucretii Satrii Valentes, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

House of Octavius Quartio biclinium fresco (wall painting) of Pyramus and Thisbe on the House of Loreius Tiburtinus, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Wide street lined with plebeians houses and structured formation of cobblestoned path with higher kerbs to wash away debris, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Casa del Frutteto atrium, remains of the House of the Orchard after Mount Vesuvius volcanic eruption in AD 79, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Casa di Paquius Proculus mosaic, interior of House of Cuspius Pansa looking across atrium to tablinum and oecus, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Human plaster cast of a body in the forum market, dead in the 79 AD Vesuvius volcanic eruption, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Terme Stabiane interior. 2nd century BC thermal complex, Stabian Baths, with columns at porticoed gym area, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Model and Buddhist stupas in the ruins of the ancient kingdom of Sri Lanka, Anuradhapura, UNESCO World Heritage Site, Sri Lanka, Asia

Harlech Castle, UNESCO World Heritage Site, Gwynedd, North Wales, Wales, United Kingdom, Europe

Amphitheater interior view, ruins of the 20000 capacity Roman Anfiteatro di Pompeii, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Rajbagh Lake and Maharaja of Jaipur's Hunting Lodge in Ranthambhore National Park, Rajasthan, Northern India

Rajbagh Lake and Maharaja of Jaipur Hunting Lodge in Ranthambhore National Park, Rajasthan, Northern India

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

Red Fort, Diwan-i-Aam audience hall, UNESCO World Heritage Site, New Delhi, India, Asia

Rajbagh Lake and Maharaja of Jaipur's Hunting Lodge in Ranthambhore National Park, Rajasthan, Northern India

Red Fort, UNESCO World Heritage Site, Delhi, India, Asia

Cruise ship passing the castle Spitz on the Danube, Wachau, UNESCO World Heritage Site, Austria, Europe

The A-Bomb Dome Memorial, UNESCO World Heritage Site, Hiroshima, Japan, Asia

Triumphal Arch ruin, Volubilis, UNESCO World Heritage Site, Morocco, North Africa, Africa

Qutub Minar, minaret and victory tower, UNESCO World Heritage Site, New Delhi, India, Asia

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

Honduras stone head at copan mayan ruins

Honduras stone head at copan mayan ruins

Theatre, Roman ruin of Dougga, UNESCO World Heritage Site, Tunisia, North Africa, Africa

Honduras stone head at copan mayan ruins

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

Roman ruin of Dougga, UNESCO World Heritage Site, Tunisia, North Africa, Africa

Theatre, Roman ruin of Dougga, UNESCO World Heritage Site, Tunisia, North Africa, Africa

Theatre, 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

Estructura 8I-13 El Castillo at Chunyaxche Muyil Maya ruins, rainforest near Tulum, Yucatan Peninsula, Quintana Roo, 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

Roman baths, Downtown, Beirut, Lebanon

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

Al-Mina archaeological site, Tyre (Sour), Lebanon.

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

Great Pyramid of Giza (Pyramid of Khufu and Cheops), and Pyramid of Khafre (Pyramid of Chephren), Giza, Cairo, Egypt

A large room within one of the terrace houses, Ephesus, Turkey

Great Pyramid of Giza (Pyramid of Khufu and Cheops), and Pyramid of Khafre (Pyramid of Chephren), Giza, Cairo, Egypt

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

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

The Erechtheion, at the Acropolis, Athens, Greece

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

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