Preserved "bog person" that is over 2,000 years old.

Amsterdam's Red Light District leaves little to the imagination.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

A rare tour of an aristocrat's private home reveals valuable 17th-century paintings from artists like Rembrandt.

A public urinal so pretty, it was declared a national monument.

A beautifully eclectic mix of architectural styles.

The history and future of cannabis.

Museum preserving torture methods from the past.

Created as a "model concentration camp" to hide Nazi atrocities from the international community, this former camp-ghetto now holds a museum and memorial honoring the lives lost within.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

This no man's land slicing through the island is strewn with abandoned relics of another time.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

This former Cyprus flight hub is now a crumbling, abandoned ghost complex.

Neo-cave art on the macro scale.

The enormous smoke hides within a little known, semi-secret exhibit inside Havana's Morro Castle Historic Park.

This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

A Spanish-style estate that has traded black ties for rock concerts.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This fort dates back to 1588 and was colonized by the Portuguese, Dutch, and English and sits prominently on the Indian Ocean where azure water lap the coast.

This rural Sri Lankan village hides a cluster of small, enigmatic stupas.

This ancient cave temple complex is the largest and best-preserved temple complex in Sri Lanka.

This amazing mountain temple is topped by one of the tallest sitting Buddha statues in the world.

Known as the most scenic route in Sri Lanka, this train line is steeped in history and offers an unparalleled view of the country.