Massive fortress bastions in the desert of Cholistan.

Reputedly haunted sandstone necropolis with exquisite stone carvings.

Famously misunderstood wonder of the ancient world

The largest dam in the world and the site of a potential disaster.

Tibetan-influenced mountain fortress in Northern Pakistan.

Lunar landscape, a mud volcano and bizarre rock formations.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

The second-longest continuous wall on the planet protects a hidden secret in the deserts of India.

The red crab exhibits one of the most spectacular migrations on earth, despite manmade obstacles.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Where Stoddart and Connolly suffered in the infamous Bug Pit.

This cavernous swimming spot doubles as a home to the largest known colony of bats in Central Asia.

Mysterious hillside with a continuously burning natural fire.

The Avenue of Mausolea is a series of grand palatial tombs.

In oil-rich Azerbaijan, people bathe in the black stuff.

A cave covered with bizarre stalactites of cloth.

Resonant stone, that has been played since prehistoric times.

Lava stone structures possibly dating back to the 19th century may have been a stopping point for voyagers between ancient Egypt and the Mayan Civilization.

A nuclear power plant abandoned along with an international allegience.

An exquisite tunnel of cascading flowers.

Okinawan dining in a twenty foot tall, man-made tree house overlooking Naha Harbor.

The Rozenberg wind wall in South Holland makes for smooth sailing through the Calandbrug canal.

An underground city of salt.

Stalin's march toward a more modern USSR flooded a monastery, leaving a unique and extravagant nautical marker, "The Flooded Belfry."