This skeleton-filled altar piece served as a backdrop to one of the most iconic scenes in "The Sound of Music."

These 12th-century catacombs carved into a mountainside were a place of mysticism and Christian hermitages.

This small Bavarian graveyard is filled with empty graves for German soldiers lost during the World Wars.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

A rare example of a German cemetery with traditional grave markers dating back several generations.

Devilish masks, handicrafts, and pieces of old buildings create a snapshot of life in a historic Alpine region.

Europe’s oldest natural human mummy.

These unique "earth pyramid" clay columns can be found in ravines around the village of Tirolo.

A stunning hermit's shrine on a steep rocky spur in Northern Italy.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

A devastating landslide accidentally created this tourist hotspot.

This overgrown mountain village has been abandoned for nearly a century.

Crumbling ruins of the thermal baths that once attracted royals and aristocrats from throughout Europe.

The hilltop ruins of a border fortification in the Italian Alps that was much fought over.

A crumbling World War I fort that is reached through a series of concrete tunnels.

With its mine closed, this old village is starting to resemble a ghost town.

An unmistakable facial pareidolia in the Julian Alps also includes a fantastic tale.

The monument honors the mountaineers who were part of Europe’s best anti-Nazi forces.

On a small Slovenian island, diners can mix and match a classic cake into dozens of sweet and savory flavor combinations.

Double spiral staircases are not unheard of, but they are very rare.

The shell of a medieval fortress offers commanding views of the area it once protected.

One man's little-known private clock museum hides inside a historic farmhouse, set amidst the Austrian countryside.

"World machine" built by an untrained Austrian farmer.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.