When a massive landslide hit one of the world's tallest dams it created a tragic environmental disaster.

A natural wonder in south Denmark.

Tiring of digging out the door to this church for every service, it was eventually abandoned to the sands.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

Numerous stone coffins from different centuries, lined up in a sixth century basilica.

If they push on just the right spot, even the weakest person can move this titanic boulder.

The real life town from the Pied Piper of Hamelin has a mechanical puppet show that retells the famous story many times a day.

This winding road through an Italian canyon may be the most scenic drive in the world.

An open-air museum in a mountain valley features works designed to blend in with—and disintegrate back into—their natural surroundings.

The smaller of the three towers of San Marino is a former prison inaccessible from the ground level.

Eighteen mummies have stood guard behind the altar of this tiny church since 1833.

On the shores of Lake Garda, the ruins of a Roman villa that allegedly belonged to the poet Catullus.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

Old vessels have been transformed into artistic canvases in this unusual cemetery.

Folklore and history carved into Brittany's coast.

Europe’s oldest natural human mummy.

Does this strange mural depict witches battling beneath a penis tree?

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

A visionary Italian architect created an impressive cluster of concrete structures for a family's private tomb.

Destroyed numerous times, this centuries-old bridge has always been rebuilt with its original design.

Despite centuries of architectural innovation, this French castle is being built like it's the 13th century.

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