This isolated island is often capped by its own fluffy cloud.

Nineteen ancient rock-cut Buddhist caves can be found on the outskirts of Mumbai.

Rock-cut cave complex filled with ancient Buddhist artwork.

The remains of what was, not so long ago, the world's largest city.

Centuries-old bridges grown from tangled roots.

A city built from mud and known as the "Manhattan of the desert."

Only a handful of these gorgeous historic waterwheels remain but even those are in danger from local unrest.

Ruins of the Crusaders' headquarters.

Mysterious lost empire of the Silk Road.

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

9th century Abbasid mosque, damaged in modern warfare.

This famed Silk Road oasis was one of the largest cities in the world before it was destroyed by a Mongol horde.

A place as enchanting as the journey to reach it is harrowing.

Massive fortress bastions in the desert of Cholistan.

Reputedly haunted sandstone necropolis with exquisite stone carvings.

This lost city belongs to one of the earliest civilizations in the world.

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

The oldest Buddhist monastery in Mongolia has survived centuries of invasions, political shifts, and religious purges.

Believed to have once stored either human remains or rice wine, thousands of mysterious stone jars lie in ruin.

Extremely isolated Silk Road caravanserai in the middle of nowhere.

A modern tower, symbolizing the legend of a golden egg on top of the tree of life.

Nicknamed Kazakhstan's Grand Canyon, this natural wonder lies east of Almaty near the Chinese border.

A sprawling nature preserve harbors the world's only living dragons.

Bali's remote "gateway to heaven" is one of the most sacred places on the island.