The last bastion of Roman presence north of the Alps looms over a German town.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This is the oldest Roman-made bridge in the city still existing in its original state.

2300-year-old Roman road connecting the empire.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

In this German city center, the streets have no names.

Germany's longest suspension rope bridge.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

This Cold War–era fallout shelter was actually a storage facility for the nation's emergency currency.

This 17th-century house has a long and colorful history.

The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.

An intricate and amazing house built by architect Karl Junker.

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 cheeky statue of a man defecating gold coins graces the facade of a medieval guildhall.

Inside a Scottish castle hangs the tattered remains of a flag with murky origins and supposed magic powers.

This single-track road rewards brave drivers with stunning Scottish scenery.

A collection of short standing stones covers this hillside.

The oldest church in Inverness witnessed the brutal executions of many Scottish soldiers.

The ruins of a 12th-century seaside castle on the southwest coast of Scotland.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

This Roman archeological site is hidden amid a 1930s housing estate.

A giant white horse drawn on an English hillside may not have been intended to be a horse at all.