This sacred, circular cave is lined with pools so clear and still that it's hard to tell where the water begins.

These strange piles of magnetized volcanic ash travel across the desert about 50 feet per year.

In Zanzibar, a historic 19th-century palace is a reminder of the world's shortest war.

From prostitutes to soldiers to business men, the dead in this graveyard are a microcosm of Singapore's history with Japan.

Splashes of blue in an otherwise monotonous lunar landscape.

Bangkok celebrated its shifting monarchy with a militaristic homage to democracy.

A museum in a law office, filled with authentic and counterfeit goods.

A condom-covered Thai restaurant that is more concerned with birth control than food.

On stormy days debris from this unfinished and abandoned skyscraper rains down on the Bangkok streets.

A treasure trove of pathological, forensic, parasitological, and anatomical specimens.

One of the world's largest shopping malls covers an area of 15 million square feet—and it's still set to grow.

This lake in northwest Iran has started turning from green to red more frequently than scientists are comfortable with.

This ancient burial site is believed to be one of the first earthquake-protected structures in the world.

A 1,500-year-old, 3-story subterranean city where ancient Persians took refuge in times of war.

Giant reed houses made in the marshes of Southern Iraq.

This garden is very fertile.

One of Bhutan's oldest temples was purportedly built to halt a giant female ogre from preventing the spread of Buddhism across Tibet.

This penis-focused monastery is dedicated to Buddhism's "Divine Madman."

Built by the Portuguese colonists in the early 16th century, this fort is one of the oldest European structure in Asia.

In this Borneo cave, it's not the thousands of bats you need to worry about, it's the blankets of roaches.

On the outskirts of Ipoh, this sprawling temple complex is home to one of the world's tallest pagodas.

Four distinctly unique gardens commemorate the POWs who lost their lives during the Sandakan Death Marches of 1945.

A lush terraced garden full of thousands of colorful roses and mystical art.

Come in, light some incense, and ignore the live snakes around you.