A botanically themed auditorium blooms within the world’s last operating double-decker theater.

Lost subway station nestled beneath Toronto's busy commuter line.

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

This indiscriminate collection of audio antiques is trying to preserve the history of the audio industry one vintage appliance at a time.

A collection of human remains, animal body parts, and other macabre curiosities all legally for sale.

This colorful creation wasn't always a welcome part of Toronto's Moccasin Trail Park.

There are two dozen tanks just sitting in an open field in Lower Saxony.

Graffiti covers the walls of a room where university students through the centuries have waited nervously to defend their theses.

These beautiful objects represent beautiful ideas.

A well-preserved medieval village nested on a rocky outcrop and surrounded by a network of cliffs, natural bridges and canyons.

“And the Lord said unto Johan, build for thee an ark for the end of the world is approaching.”

Peek through a transparent pyramid and drink in the mountain made of books.

The bridges portrayed on EU currency aren't fictional anymore.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

The Devil’s own choice when he needs a drink in Brussels.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

The largest clown school in Britain offering accredited degrees.

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

The lab where the scientist made his groundbreaking discoveries is preserved on the basement floor of the Faraday Museum.

The cedar tree in Highgate Cemetery earned its title by accident.

An abandoned tank sits in an empty London lot as a symbolic middle finger to local city planners.

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

One of the world's largest collections of pathological specimens.