Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

People have been living in the cave houses on this Italian hillside since the Neolithic era.

Skulls and skeletons are omnipresent in this church dedicated to souls trapped in purgatory.

This medieval Italian village was transformed into an architectural marvel by the famous "Papessa" Donna Olimpia.

This breathtaking monastery was established by Saint Benedict himself 1,500 years ago.

Four abandoned towers hidden above the Douglas fir forest in Washington.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

This park on the outskirts of Rome boasts two ancient Roman aqueducts and a medieval tower.

A long-buried ancient ruin unearthed right in the middle of the city.

The bright red cars take travelers through breathtaking Tuscan scenery.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

Ever loyal to Roma, the small village of Albe in the Abruzzo region carried on until an earthquake did it in.

A sudden, striking cluster of hills south of Padua has been attracting visitors for centuries.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

What looks like a link in Gondor's early warning system is actually a centuries-old Italian fortress.

A medieval fountain lined with 99 unique stone faces whose origins and meaning remain unknown.

The mountaintop inspiration for Umberto Eco's "The Name of the Rose."

The secret medieval communication system will whisk your words above the noise of the crowd.

142 ceramic steps become a mosaic once a year.

A factory director designed what was the world's longest suspension footbridge in 1923 so his employees could get to work safely.

Crossing this suspension bridge feels like walking through the sky, a fitting tribute to the head of the Apollo program.

Geometry and mystery come together in an epic show of octagonal masonry.

An Italian geologic wonder that served as the inspiration for the landscape of Dante's hell.