The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Theme park featuring miniature replicas of European monuments.

Climb inside an iron crystal magnified 165 billion times its normal size.

This traditional festival celebrates a family of wooden giants that have survived Nazis, wars, and religion.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A mocking tribute to the past and modern leadership of Prague.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Catacombs turned marketplace.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A hands-off space for graffiti artists to hone and display their skills.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

France's most famous cemetery, with some of its most curious tombs.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A moving memorial to the fallen and missing from WWI trenches.

A little sculpture with a large wardrobe.

Every equinox this Maya pyramid puts on a spooky ancient light show.

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

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

A second generation sun-powered marvel lights up the night.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.