A 13th century fortified house built to defend the Duchy of Burgundy.

Hundreds of hidden passageways weave through the old quarters of Lyon.

This granite mountain is the largest rock in Africa and the second-largest monolith in the world.

These picturesque ruins crumble beautifully into the ocean.

This peaceful oasis appears dreamy, but it's also the site of a nightmarish legend.

The "Black Arch" guards the entrance to the picturesque Glens of Antrim.

A medieval cave used to shelter local hermits now holds nearly 200 old Quaker gravestones.

A creepy tree with a local legend that inspired a nearby theme park ride.

Centuries of human activity have forged an eerie landscape of ruins and craters on an exposed and windswept hilltop.

The lake that fills and empties itself at random.

The legend says that this English rock formation was once a hunter who was turned to stone by annoyed witches.

This Norman castle has been the scene of assassination plots, religious persecution, and Nazi conspiracies throughout its long history.

This grassy, tree-lined hill shares a name with the much-loved novel that it inspired.

This lovely Scottish nature walk leads to the source of a local legend.

A winding medieval path was used by mourners to carry their dead to the nearest church.

The site of a mysterious pony massacre is rich with extraterrestrial conspiracy theories.

These ancient ruins were the final resting place of King Henry II's mistress.

The only pub in the world surrounded by an ancient stone circle.

It is said a heartbroken man visited the gap every day to stare blankly out at the sea.

This strategically placed hill fort has served defensive forces from the Iron Age up until the 20th century.

Legend says this little-known stone circle is formed from people petrified as punishment for dancing on the Sabbath.

These remarkable cascades are the jewels of Upper Tees.

A witch wreaks ruinous revenge on this ancient church with her "enchanted leg."

This stretch of the River Severn where large waves flow against the current is the birthplace of river surfing.