This ghost town in Belgium will lose its street art when it ceases to exist.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

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

Lavish royal estate punctuated with heated greenhouses.

Just across from the "Last Supper" painting is the famous painter's vineyard, a gift received for creating the masterpiece.

A space dedicated to contemporary art and culture, co-chaired by fashion icon Miuccia Prada.

This curious building hides eclectic details like medieval gargoyles alongside naked angels and Art Nouveau mosaics.

A Milanese café entirely designed by the American director Wes Anderson.

A rare chance to ride one of the few continuous elevators still in operation.

From Nazi chemicals to the CIA, this architectural marvel has played a fascinating role in German history.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

This abandoned island off the Venetian coast has been a radical monastery, a political prison, and a secret Nazi base.

The oldest of Venice's plague quarantine stations, designed to keep the medieval city safe from disease.

Venice's "Island of the Mad."

Venice's island of the dead.

Constructed by forced laborers, this submarine pen is now a museum and war memorial.

A wunderkammer of exoticism immortalized by Tom Waits.

This contentious squat has stood through fire, violence, and government intervention as a hotbed of leftist protest.

Hamburgers are intensely proud of their tunnel beneath the river.

Remnants of an exploded schooner and wrecked submarines form a breakwater.

The forgotten remnants of a land-to-sea cable car that was once unique in the world.

This 45-story tall abandoned skyscraper is the third tallest building in New Orleans and Lousiana.

Take a few seconds to look at this abandoned, art-filled station as you pass by on the subway to Ueno.

This old, abandoned hotel offers magnificent views.