This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

Created hundreds of years ago, the magical follies and landscapes at this park were almost lost to time before being restored.

The one-time stronghold of the noble Douglas family, now home to ghost sightings and nesting birds.

A pagan tradition of draping trees with rags eerily lives on.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

A modern English garden of eccentric beasts, follies, and oddities.

A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

The wreck of a B-29 Superfortress now stands as a memorial left in the moors.