A beloved local artist has been honored with this statue of a man emerging from a toilet.

Catacombs turned marketplace.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

William Smith's iconic "map that changed the world" is hidden behind a curtain in the Geological Society building.

A roadside shrine to a late rock god only remains thanks to the unyielding efforts of his fans.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

The world's oldest family-run magic shop is hidden beneath a bustling London thoroughfare.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A kaleidoscopic warehouse-maze of handmade neon signs.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

An abandoned quarry hides an open-air gallery of huge sculptures, some made from the rubble of 9/11.

Crossing this suspension bridge feels like walking through the sky, a fitting tribute to the head of the Apollo program.

A neo-Gothic mansion now houses a wunderkammer of analog tech that hits on all the senses.

A history of heat is on display at this unique Austrian museum.

A silly medieval mural preserved on the side of a Viennese house.

Handsomely crafted representations of our round planet.

An otherworldly alpine pasture with its own unique microculture that recalls Middle Earth.

This massive subterranean fissure is known as the "underground Grand Canyon."

A whimsical bridge adorned with decorative dragons.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

The middle finger of modernity.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

An enigmatic modern marker left next to a historic Roman site.