This neighborhood thoroughfare is haunted by dozens of homemade monsters.

The magical, mossy forest that inspired 'Princess Mononoke.'

This massive library holds what was once the largest book collection in the world.

It is believed that this Buddhist temple stands right on the gateway to the underworld.

The groundbreaking Japanese shrine maiden who invented the art of kabuki.

The 10,000 Torii shrine.

Be a ninja - or just act like one.

Steaming blood-red hot spring from hell.

Closed for decades, this strange symbol of Japan's Expo '70 has finally opened its psychedelic insides to the public.

This Japanese national treasure was originally built in 593.

The largest volcanic caldera in Japan holds an entire city in its maw.

Catacombs turned marketplace.

Once a 19th-century refuge for immigrants, this pub has hosted performances by Amy Winehouse and the Arctic Monkeys.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This tribute to the fictional detective stands at the famous literary character's address.

An underground city of salt.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

Seven dragon statues—including one that breathes real fire—are scattered throughout the streets of Krakow.

Krakow's own version of the Hollywood Walk of Fame.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

Legend says this is actually a heartbroken prince waiting for his true love's kiss.

Memorial to the lost dead of Gdansk, whose resting places were destroyed during World War II.

These rare statues are one of the few remaining material witnesses to Old Prussian culture.

Gods clash with machines in a power plant regenerated as a museum.