Khmer Rouge's high security prison.

When the USA donated cement and funds to expand the airport in Laos, the Laotians built a massive monument instead.

Thousands of effigies of Buddha watch from caves set high above a legendary river, plus whiskey.

Buried in the Laos jungle is a sanctuary for bears that would have otherwise been milked to death by poachers.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

Known as the "Queen of Beach Markets," Calangute epitomizes Goa's beach flea market scene.

Finnish lake, and scene of an infamous murder mystery.

The door to the museum holds a unique artifact from the Finnish Civil War.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

In the waters outside Helsinki, a tiny island once used as a military outpost now welcomes visitors.

On a small island, a replica of a Finnish village from the Iron Age.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

Skyscraper powered by wind turbines attached between its towers.

Whitewashed mosque contains the world's largest carpet.

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

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

This living legend of maritime history is enjoying a second life.

Different sections of the Zemun Fortress were built in the 14th and 15th century as a response to the advance of the Ottoman Empire.

The unusual sculptures are believed to be powerful political symbols.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

A pair of connected skyscrapers form this symbolic gateway.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

In the hinterlands of Serbia's capital, a giant reflective mushroom houses an aeronautical history of the former Yugoslav republic.