Notorious artist squat renovated into legal studios.

The lost American era of gunfighters, bandits, Indians and steam trains is recreated in Sweden.

Despite the groans of archaeologists, this astounding groups of Bronze Age petroglyphs have been painted red for tourists.

Tiny Swedish village with a distinct local phenomenon known as an "Elk Shower."

A floating underwater hotel, created by a Swedish artist.

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.

The Kirkland Monument remembers a selfless Civil War hero who braved the battlefield to give water to his dying enemies.

A mysterious dark-skinned Christ statue has been this town's religious center for centuries.

A huge, bustling local market in Panama City.

Roam the cradle of the Cuban Revolution with life-sized dinosaurs.

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

A mysterious and terrifying public art goblin seemingly meant to inspire local legend.

An ethereal glowing blue ocean cave in Croatia.

A gargantuan crystal kingdom.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

Fine dining in the bizarre world of Lewis Carroll.

Once the most densely populated place in the world, this island is now a ghost town.

An Aztec snake god has taken the material form of an apartment complex.

Try not to get slimed in Tribeca.

Continuing the tradition of the dime museum in style.

Hidden beneath the streets of London is a secret subway that only carried mail.

The first declared National Monument in the United States.

Monasteries on rock pillars, once accessible only by frayed ropes.