Long-secret natural history museum, featuring the skull of a "Terror Bird."

This silent sentry in the crypt below a large Gothic cathedral is often knee-deep in water.

Home to the most complete dodo remains known - one head, and one foot.

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

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

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

These lovely Turkish-styled baths were brought back to life after winning a reality show competition.

This tiny little pool is said to be home to a malicious mermaid named Jenny Greenteeth.

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

A perilous medieval road leading right into the sea.

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.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

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

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

A midnight snack that lights up the night.

The ghosts of Britain's telecommunication past sit rusting away in a small village in England.

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

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

This lovely little burbling creek is actually a deadly waterway that has dragged down everyone who ever set foot in it.

One of Europe's oldest libraries.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

Puzzles within puzzles hide a golden treasure in this hedge maze.

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

Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.