A collection of weird and wonderful art fills a former houseplant nursery.

Inside this former medieval prison is a collection of objects designed to inflict unbelievable pain and suffering on the human body and mind.

The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.

A rare example of World War I trenches from the British front.

A moving memorial to the fallen and missing from WWI trenches.

This memorial museum chronicles the apocalyptic destruction of the First World War.

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

This old, abandoned hotel offers magnificent views.

This museum is filled with an eclectic collection of unique inventions.

The former home of a trailblazing surrealist is still filled with haunting dolls and grim paintings.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

The highest point in Belgium is a staircase to nowhere.

Abandoned since 1998, this train station has become an oasis for urban explorers.

This abandoned Belgian fortress is purposefully being left to nature.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

A modern reimagining of a medieval city gate.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

A tongue-in-cheek arcade where the games are based on everyday life.

The next-door homes of two very different musicians, George Frideric Handel and Jimi Hendrix.

A cluttered and astounding collection of antiquities and curiosities.

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

The "stairway to heaven" lookout tower was built to resist weather, arson, and the laws of physics.