The grounds and buildings of an old wood pulp mill have been transformed into an innovative art park and museum.

From a distance, Latin America's first Baha'i Temple looks like an enormous egg perched atop a hill.

An eccentric German artist built this weird and wondrous castle packed with shocking sculptures and alien art.

The royal seat of Henri Christophe, a formerly enslaved man who became Haiti's only king.

This iconic fortress was once the crown jewel of Haiti's national defense.

Some believe this abandoned Brutalist masterpiece inspired George Lucas's Sandcrawler.

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

Just outside of Nairobi lies a large estate surrounded by endangered Rothschild giraffes, who have been fed from the window by Mick Jagger and Walter Cronkite.

Whitewashed mosque contains the world's largest carpet.

This mouldering abandoned mental hospital was once a center for progressive healing.

The oldest continuously inhabited street in America.

Not even a series of devastating fires could keep this odd castle in upstate New York from bouncing back.

The shared home of a utopian commune that practiced "free love" a century before the hippies.

It wouldn't be long after purchasing this farm, Brown would lead his siege on Harper's Ferry.

Dozens of houses in the Adirondack Mountains are reminders of a literal "cottage industry" to cure people of a deadly disease.

This centuries-old rooster survived a devastating fire.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Ruins of a former government building destroyed during the Georgian-Abkhaz war in the wake of the fall of the Soviet Union.

A beautiful but deteriorating monument of Soviet architecture.

Fortified homes of highland warriors that are still in use today.

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