Within the Saudi Arabian desert lies a 2,000-year-old ghost town made of stone and mud.

More than 100 monumental tombs carved into rock are preserved at this ancient Nabataean site in the Arabian Desert.

An unfinished tomb carved into a giant boulder in the Arabian Desert.

This futuristic building is yet another architectural wonder in Dubai.

The building is a gigantic piece of art inspired by the shape of a desert rose.

An ancient fortified mound raised over the millennia from settlements built one on top of the other.

Celebrated as a center of civilization, the remains of the ancient city have been nearly destroyed by greed, egoism, and war.

Kuwait City's uniquely designed water towers look straight out of a retro sci-fi cityscape.

A Zoroastrian funerary tower where excarnation rituals are carried out is threatened by the area's dwindling vulture population.

This historic square in Nepal is home to temples dating back to the third century.

One of the largest Buddhist stupas in the world keeps an eye out in every direction.

Sacred Buddhist home of some spiritual monkeys.

5,000 skulls in memorial to those killed by the Khmer Rouge.

This Cambodian riverbed is covered in ancient Hindu carvings both above and below the waters.

A former French military respite turned jungle tourism hotspot.

A battle between nature and architecture in the Cambodian jungle.

The second largest reclining Buddha in the world got "lost" for over 120 years.

A series of tiny artificial islands rich with produce bob atop the surface of the lake.

This gem-encrusted temple is said to contain some of the Buddha's hair which can make the deaf hear and the blind see.

A precariously perched golden rock defies gravity and brings pilgrims from across Myanmar.

Over 2,000 ancient temples dot the Myanmar landscape at the site of this famed archaeological site.

Established hundreds of years ago, Gandan remains the premier Buddhist monastery in Ulaanbaatar.

Mongolian Buddhists believe this monastery in the Gobi desert to be the center of the world's spiritual energy.

A huge communist-era propaganda monument and mural that offers stunning views of the Mongolian capital.