A historic neighborhood church is reborn as a psychedelic arts collective.

The site of the climactic scene from the classic horror film is now a historic landmark.

This London plaque marks the spot where David Bowie's famous alien made his debut.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

The remains of Crystal Palace Great Exhibition of 1851.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

Banksy gives themself artistic license with this piece of London street art.

Hidden beneath the streets of London is a secret subway that only carried mail.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

The largest greenhouse in the world is home to over one million types of plants.

Last remaining nuclear missile base in Ukraine.

One of the most poignant ruins of the Chernobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

A monument to Lenin has been transformed into a statue of everyone's favorite black-helmeted, fool-choking Sith Lord.

This derelict superstructure was a very important warning system for the Soviet military.

A subterranean Holocaust refuge within one of the world's longest cave systems.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

This attraction was abandoned after the Chernobyl disaster.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

What if all public housing projects had been designed by "the Pygmalion of modern architecture," not only their prototype?

For a brief time in 1960s France, families could climb into a tiny submarine and be pulled along an underwater journey.

Street artists transformed an abandoned air vent into the beloved Star Wars robot.