A former plague hospital turned medical museum.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

The 10,000 Torii shrine.

This neighborhood thoroughfare is haunted by dozens of homemade monsters.

A shrine contains nearly 200 statues of the Buddhist deity Jizo, dressed in bibs by parents who have lost a child.

The quintessential Japanese rock garden has existed for more than 500 years.

A bronze statue dating back as far as 1252, still has remnants of gold on its right cheek from ancient gilding.

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

Where an entire elephant skeleton, a snakeskin table runner, and thousands of animal remains become art.

A white Buddhist temple with a golden restroom.

A treasure trove of pathological, forensic, parasitological, and anatomical specimens.

The ruins of this Dutch castle sit atop a labyrinth of once-secret tunnels and passageways, dating back over 900 years.

Pilgrimage site for star-crossed lovers.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Venice's island of the dead.

France's most famous cemetery, with some of its most curious tombs.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

One of the largest underground systems runs under Canada's largest urban center.

The "Prussian Versailles" that is as glorious today as when it was built.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.