The site of an early Arthurian battle and the dwelling-place of prehistoric people and (possibly) an ancient race of giants.

A hidden medieval crypt where a famous legend says the devil used to teach black magic.

These mysterious mazes carved on the rock may be up to 4,000 years old.

In the ruins of Glastonbury Abbey lies the alleged resting place of the legendary king.

Legend says these rocks used to be hunting dogs, a story that may have inspired Sherlock Holmes' most famous case.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

An optical illusion found amid a logged redwood forest.

The original movie set for the home of 'Star Wars' hero Luke Skywalker.

An abandoned film set location for a remote spaceport in a galaxy far, far away hides in the Tunisian desert.

This 11th-century structure is one of the oldest churches in Romania.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

This mysterious artificial cave has long puzzled New Englanders.

The “Sistine Chapel” of the Middle Ages merges 11th-century science and religion in wondrous hues.

This German bone house contains the remains of some 20,000 souls.

The remains of centuries of copper mining appear like an alien landscape.

Home of the infamous Cauld Lad of Hylton and one of the inspirations behind "Alice" in Sunderland.

This lonely bronze walrus celebrates a character in a Lewis Carroll poem.

Two small chapels housed inside an ancient tree.

This half-forgotten fortress was constructed by the Ottoman conqueror of Constantinople.

At this archaeological site, visitors can explore the ruins of the capital of the former Roman province of Moesia.

The heaviest gold coin ever minted.

The fairy tale castle of the "fairy-tale king."