This basement museum explores the art and artistry of fascism.

The world's only museum devoted to the wonders of fluorescence.

Nature is slowly overtaking this disused cemetery on the outskirts of Brussels.

Head underground and take a tour of the city's working sewer system, and see the underground river Senne, which defined Brussels for centuries before being covered in the 19th century.

The many—66 to be exact—faces of the German forest.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

Cretean quarry suggests real-life site for ancient Greek myth of the man-eating Minotaur in his labyrinth.

The world's foremost museum dedicated entirely to the abacus.

These excavated burials from the Tarim Basin are wrapped in mystery.

What can compare to the comforting sound of 10,000 toilets running?

North Korea's massive art and propaganda factory now has an official gallery space in Beijing.

Walled family complexes in Southern China.

A bisected journey through evolution's history in the heart of Beijing.

Hidden behind musical flora and forgotten for over a thousand years, this cave is now a neon dream.

China’s breathtaking futuristic library is lined floor to ceiling with fake books.

A part of the world's largest marsh seems to be growing bright red Martian grass.

A fifth-century temple improbably built into the side of a cliff.

The western-most fortress on the Great Wall of China has gone from a strategic stronghold to a kitschy tourist carnival.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

Extensive private collection of authentic Medieval devices used for human torture and execution.

Vines grow up the metal bars in this public park created from an old machine factory.

American soldiers discovered Europe's best one-liner at the end of World War II.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.