Sleep in a climate-controlled plastic bubble for the night.

Oxford University's stateliest library seems designed to make students truly feel the weight of knowledge.

A subterranean playground in an abandoned slate mine.

One of the world's largest collections of pathological specimens.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

A historic house left in "dramatic still life."

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

A tongue-in-cheek arcade where the games are based on everyday life.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A remote hilltop covered in giant monoliths haunts the Brittany countryside.