The prison where Hitler wrote "Mein Kampf," and 278 Nazis were later executed for war crimes.

A graveyard and memorial chapel for victims of leprosy.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

This biographical museum honors the groundbreaking scientist at her birthplace in Warsaw.

This 135-year-old weather station studied the effects of the climate on human health.

A stick-sprouting statue watching a duo of disembodied dancing deities.

The smallest restaurant in the world.

One of the world's most unusual events combines headbanging and needlework.

A tiny replica of the iconic London landmark hides on the side of the steel structure.

This disused church, left to the elements of the Arctic Circle's forests is open for exploration.

A beautiful Arctic museum and nature center preserves the culture of the Sámi people.

If you visit Santa's village, you can get your passport stamped to show you crossed into the Arctic Circle.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.

This bewitching Babylonian goddess haunts a hallway of the British Museum.

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

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

This charming wooden church was disassembled and moved not once but twice before settling in this Prague garden.

An old asylum graveyard that's been abandoned for half a century attracts those seeking a dark thrill.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

This strange statue depicts a young boy's body with an adult Mozart's head and a single wing.

The body of at least one victim of a construction accident was left behind in the collapsed pylon, buried under tons of concrete.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

The video game-themed street art first popped up in the French city.