This castle resides in a valley known for immense bloodshed during the Middle Ages.

Although it has never been a secret ninja base, this shrine still has plenty of tricks up its sleeve.

A museum dedicated to the former country.

Hidden deep in a forest is this geological wonder carved by glaciers.

A Wes Anderson-esque lighthouse that boasts magnificent coastal views.

This scenic fortress dates back at least 2,400 years to the time of Magna Graecia.

According to the legend, this structure was built in a single night with the help of the devil.

A sad reminder of the World War II bombing stands largely unnoticed on a street corner.

Would you dare to dangle from a great height in a wooden basket?

The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

This 2,000-year-old Doric bridge is still open to pedestrian traffic to this day.

A hyper-remote desert cave dramatized in "The English Patient."

Featuring the last fully walkable parapet walkway in Europe.

The largest archaeological site from the Yayoi period.

A ruined castle stands atop a hill surrounded by dragon lore.

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

A small thermal park among the mountains of Southern Italy features a surprising piece of modern art.

The remains of this medieval Roman road and lookout towers dot the rugged coastline of southern Lazio.

Featured in one of the most iconic scenes in cinema history.

These natural stone bridges are the largest on the European continent.

A massive sculpture of an obscure Celtic coin that has become a symbol in Slovakia.

This medieval settlement was abandoned after a series of landslides. What remained was largely destroyed during a mock battle for a WWII film reel.

A record-breaking pool that uses computers to turn ocean water into cleaner, private swimming water.

This hobbit-y little hot spring may be the oldest spring used by humans in all of Iceland.