Mosaic depicting the Three Kings bringing gifts to the Holy Child, 6th century basilica di Sant'Apollinare Nuovo, UNESCO World Heritage Site, Ravenna, Emilia-Romagna, Italy, Europe

Torre de los Alumbres, Rodalquilar, Cabo de Gata national park, Almeria, Andalusia, Spain, Europe

Snow-coverd Christian Orthodox wooden church of St. Michael dating from the 18th century, transferred to present site from western Ukraine village of Medvedov, Smichov, Prague, Czech Republic, Europe

A site dedicated to those killed during the Khmer Rouge conflict at Choueng Ek, Phnom Pehn, Cambodia, Indochina, Southeast Asia, Asia

Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe

Humberstone Saltpeter Works, UNESCO World Heritage Site, northern Atacama, Chile, South America

The Way of Abundance, archaeological site of Pompeii, UNESCO World Heritage Site, province of Naples, Campania, Italy, Europe

Humberstone Saltpeter Works, UNESCO World Heritage Site, northern Atacama, Chile, South America

The ruins of the ancient Roman and Byzantine city of Bet Shean, Bet Shean National Park, Israel

X-ray style painting of a wallaby at the Aboriginal rock art site at Ubirr Rock, Kakadu National Park, where paintings date from 20000 years old to present day, UNESCO World Heritage Site, Northern Territory, Australia, Pacific

Warrior frieze at the Aboriginal rock art site at Ubirr Rock, Kakadu National Park, where paintings date from 20000 years old to present day, UNESCO World Heritage Site, Northern Territory, Australia, Pacific

X-ray style fish at the Aboriginal rock art site at Ubirr Rock, Kakadu National Park, where paintings date from 20000 years old to present day, UNESCO World Heritage Site, Northern Territory, Australia, Pacific

Painting of a turtle at the Aboriginal rock art site at Ubirr Rock, Kakadu National Park, where paintings date from 20000 years old to present day, UNESCO World Heritage Site, Northern Territory, Australia, Pacific

Warrior frieze at the Aboriginal rock art site at Ubirr Rock, Kakadu National Park, where paintings date from 20000 years old to present day, UNESCO World Heritage Site, Northern Territory, Australia, Pacific

Rainbow Serpent at the Aboriginal rock art site at Ubirr Rock, Kakadu National Park, where paintings date from 20000 years old to present day, UNESCO World Heritage Site, Northern Territory, Australia, Pacific

Whalebone Alley, female tourist standing around still intact extremly old inuit elder grave, skeleton still present. Itygran Island (Bering Sea) Russia, Asia. MORE INFO: Whale Bone Alley was discovered by Soviet archaeologists in 1976, but has remained untouched since and little is known of this place. There is a long double line of bowhead whale bones -- jaws and ribs -- running parallel along the shore for hundreds of yards. Many of the bones, especially the enormous jaw bones, are still standing, propped up by lichen-covered rocks. The location is thought to have been used in about 1300 as a ceremonial site, for a men's secret society or feasting site.

pilgrims burn incense sticks and candles, main hall, fire, red, Wannian monastery and temple, China, Asia, World Heritage Site, UNESCO

Prayer, pilgrims, Wannian monastery and temple, World Heritage Site, UNESCO, China, Asia

pilgrims burn incense sticks and candles, main hall, fire, red, Wannian monastery and temple, China, Asia, World Heritage Site, UNESCO

pilgrims and tourists burning incense sticks and candles, 3077 metre altitude, Golden Summit, summit of Emei Shan mountains, World Heritage Site, UNESCO, China, Asia