Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

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

An archaeological treasure trove towers over the valley of Chiavenna.

A sulfuric hellscape in southern Italy.

Every spring, locals see the shadowy figures of a ghost army of slain Greek soldiers descend upon this ruined fort.

An impressive collection is dedicated to the legendary beast.

An Italian hillside ghost town.

A cave in southern Italy adorned with thousand-year-old Biblical frescoes existed in obscurity until fairly recently.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

There's a strange stone hoodoo towering atop a wooded hillside and no one is quite sure how it got there.

Local lore says the devil built this beautiful medieval bridge to help a fleeing bandit.

Something's watching you.

Ancient rock-hewn town that witnessed key events of Georgian history.

A miniatures park with a model of Wolf's Lair as it looked during World War II.

Bohemian paradise covered in majestic forests.

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

Stone pillars and a petrified wedding party in the hills of North Macedonia.

Alien rock formations grown from the sands of an Australian national park.

There might not be much left of these Irish ruins, but their linguistic legacy is still going strong.

Ruins of a 10th century church tucked away deep in a botanical garden.

A fernery hidden by neglect is uncovered, and an ancient specimen along with it.

A colossal sculptural lion built by the same man who designed the Statue of Liberty.