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

Amsterdam's former hotspot for public executions and dissections.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

Museum preserving torture methods from the past.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Dine amidst exotic plants at this former royal greenhouse.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

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

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Macabre astrological automaton clock dating to the late 1400s.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

Sloth rehabilitation center in the jungle of Costa Rica.

Be(w)ar(e) the moat around this historic Czech castle.

This limestone cave offers an incredible view of the Río Grande de Arecibo valley.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

Thousands of bats stream out of caves every night on the edge on Thailand's second largest park.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

Enter the Forest of the Elves.

Secret hideaway for an alternative beach experience.