The world's largest frame offers spectacular views of the city's past and present.

A faithful reproduction of Al-Jazari's enormous water clock.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

This futuristic building is yet another architectural wonder in Dubai.

Though these human-made islands were constructed as an escape for the wealthy, they rarely see many visitors.

Remnants of the most densely packed city in world history, that thrived on anarchy for 30 years.

An otherworldly "cave" created by an artist in a Hong Kong factory building.

A surreal museum of extraordinary industrial objects.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

A giant chameleon, with a fascinating purpose.

From grand battles to daily life, this Spanish museum offers a view of world history in miniature.

The remains of a medieval city loom in one of the most isolated desert regions of Turkmenistan.

A memorial to the thousands of Turkmen soldiers and civilians who died in a bloody 1881 battle.

Few people have ever heard of, let alone visited, one of Turkmenistan’s most impressive natural attractions.

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

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

A fiery crater has been burning in the Karakum Desert since 1971.

The controversial final resting place of the equally controversial first president of Turkmenistan.

Sumptous memorial to a controversial independence.

A dictator's gold statue once rotated to face the sun on a 75-meter high marble tower.

An eccentric dictator's take on a Turkmen version of Disneyland.

If you want to get married in the White Marble City of Ashgabat, you should do it in this surreal disco ball building.

Near the mouth of the Yodo River, this museum offers visitors six floors of hands-on learning about Osaka's raw sewage.