An old asylum graveyard that's been abandoned for half a century attracts those seeking a dark thrill.

Walk through Czech history in Prague's largest graveyard.

These 17th-century mummies are no longer naturally preserved, but remain on display today.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

Massive installation of Europe's negative stereotypes.

Underneath the city that invented pilsners are a series of historic tunnels that have been storing beer for centuries.

This painted Lego bridge is the product of over a century of locomotive history.

The streets of a sleepy Spanish town proudly exhibit some of the world's finest graffiti.

A modern-day Lascaux cave underneath Paris.

A scattered trail of street art adds a pop of color to the city's stark structures.

Overlooking a Scottish loch, this beautifully crumbling castle once inspired a poem by William Wordsworth.

An eccentric aristocrat brought these Australian natives to their current Scottish home.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

Possibly the oldest living thing in Europe, more likely a pagan survivor.

A floating cat sanctuary on an Amsterdam canal.

A spiral staircase twists to the top of this unusual Czech lookout tower.

The abandoned mine where American troops discovered a treasure trove of art and artifacts hidden by the Nazis.

Living trees form the structure of an open-air palace.

As lake waters recede, a German village reemerges after more than a hundred years.

A strange rock formation with numerous legends trying to explain it.

Snow-capped peaks, colorful waterfalls and stunning vistas on the edge of the Himalayas.

The tallest stationary dunes on Earth also happen to sing.

One of the world's largest ice festivals dazzles visitors for over a month with radiant sculptures and carvings.

This psychedelic tourist trap is a leisurely descent into madness.