Local legends say that fairies used to dance in the moonlight here and invite handsome young men into their grottoes.

This antique prison is a tourist attraction with a sordid past.

A secret garden in a picturesque Edinburgh village has inspired artists for centuries.

Sometimes an island, sometimes a rocky outcropping connected to the world by a tiny suspension bridge.

19th century museum with an eclectic mix of curiosities, from Egyptian artifacts to items on archery history to the skull of the world's oldest horse.

A perilous medieval road leading right into the sea.

A hidden tunnel leads to an abandoned slate quarry that's now a secret swimming spot guarded by cliffs.

Cliffs full of fossils at the portal to England's Jurassic Coast.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

The childhood home of Earth's alien chameleon is a humble Brixton flat.

This picturesque archeological site looks like it was pulled straight from a fantasy novel.

A century-old tradition has culminated in a small but singular collection of feline effigies.

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

Legend says this cave housed a 16th-century cannibal and his family of 48.

An English artist has turned an unassuming ex-council house into a time-lost house of mystery.

The remains of a grand castle that may have inspired Bram Stoker's Dracula.

A midnight snack that lights up the night.

An 18th century monument regularly tagged with unsettling graffiti referencing a 1940s unsolved murder.

Overlooking a Scottish loch, this beautifully crumbling castle once inspired a poem by William Wordsworth.

A sweet symbol marks the place where torturous executions were once carried out.

Man-made cave with enigmatic carvings, some say made by the Knights Templar themselves.

This romantic, decaying 13th-century ruin on the edge of Sherwood Forest is reputedly one of England's most haunted places.

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.