The signs of a long buried road can still be found hidden beneath a London sewer grate.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

A little slice of Japan and its aesthetics in London's Holland Park.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

This centuries-old hotel hides a network of secret cellars and passages once used by smugglers.

Legend says this rock was once a chopping block for public executions.

The broken skateboards that became a poignant memorial to a murdered skater.

A secret door leads to this cozy dive that sells only “milk.”

A curious collection of mechanical moving figures.

This crumbling folly looks like an enchanted left over from Middle Earth.

The oldest inn in England served brew to the crusaders.

Eclectic final resting place of the controversial explorer.

Legend says a witch conjured the world's third largest whirlpool to protect Scotland from a nasty pirate.

Pop culture has helped to keep this iconic British building from being destroyed.

The heads of two giant mythological water horses honor Scotland's horselord past.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

Abstract dinosaur models in London.

A book bound in the skin of an infamous criminal, along with countless other specimens.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

The sign at the garden gate reads: "These Plants Can Kill."

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

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A kaleidoscopic warehouse-maze of handmade neon signs.