The Andean town where every single building is decorated with a brightly colored frieze.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

This rare volcano spews the strangest and (literally) coolest lava in the world.

The final resting place for the remains of 143 Habsburg royalty.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

Home to over 200,000 artifacts, this museum attempts to guide visitors through the ancient history of Beijing and Imperial China.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

A modernist landscape of water and sci-fi concrete.

The final resting place of New Orleans' most famous voodoo priestess.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

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

Medicinal spa created with the discharge from a geothermal energy plant.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A stairway to heaven, or to nowhere at all.