Though technically an illegal structure, this eclectic DIY apartment complex is beloved by its residents.

Curious onlookers have suspected this strange structure is a secret government base.

Disaster prevention apartment blocks in Sumida Ward are designed to save as many as possible in the face of the inevitable.

The buildings are among the few Frank Lloyd Wright structures still standing in Japan.

This 14th-century temple is also known as the "Temple of the Golden Pavilion" for its gorgeous gilded reliquary hall.

Shrine dedicated to boars that is believed to cure foot and leg injuries.

Elaborate series of tunnels where traces of mass suicide are still visible.

Enormous underground chamber built to detect 'ghost particles' of the universe.

A Japanese corporation has turned this small island town into living modern art gallery.

We heard you like volcanoes so we put a volcano in your volcano so you can die for sure...

Once a black market electronics marketplace, now an otaku shopper's paradise.

Not quite the menace it once was, this monster still has some chops.

The original "capsule building" is a masterpiece of Metabolist architecture.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

An ingenious solution to a tricky engineering problem, this spiraling bridge takes drivers for a dizzying spin.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

The first green space constructed on an elevated viaduct.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

This museum houses an imposing skeleton army comprised of creatures great and small.

France's national museum of scientific and industrial instruments.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

A museum of carnival attractions where you are invited to ride the rides.

Abandoned railway line circling the city of Paris.