The fairy tale castle of the "fairy-tale king."

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

A haunting theme park is slowly being swallowed by the jungle.

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

Museum dedicated to the terror regimes of Hungary.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

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

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

Macabre astrological automaton clock dating to the late 1400s.

A celebration of capitalism in Midtown.

A battle between nature and architecture in the Cambodian jungle.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

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

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

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

A church of bones, decorated with 40,000 human skeletons.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

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

Recovered from the brink of extinction, at home in the Financial District.