The biggest pinball arcade in the world has over 600 pinball machines, and 300 arcade machines.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

England's most notorious suicide spot.

An Italian hillside ghost town.

Rent out a glass igloo to watch the Northern Lights like you live in the future.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

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

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

Houses are tucked between, on, and underneath giant boulders.

Abandoned railway line circling the city of Paris.

Walk 2,300 feet above the ground on the "Troll's Tongue."

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Ruins of a German Castle on top of a towering stone pillar.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The remains of diamond fever taken over by the desert.

This attraction was abandoned after the Chernobyl disaster.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.