Hear the quietest sound from across the dome.

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

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

The curios of pharmacist and collector Henry Wellcome.

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

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The longest hedge maze in the world.

A 30-acre garden inspired by the principles of modern physics.

This South London cemetery holds the remains of more than 15,000 people.

A kaleidoscopic warehouse-maze of handmade neon signs.

The atmospheric road was never meant to be so creepy.

The world's largest collection of witchcraft regalia.

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

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

These fantastically named natural pools look like something out of a Scottish myth.

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

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

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."