Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

This series of Scottish caves has no clear purpose other than baffling historians.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

This tangled English forest looks like something right out of a fairytale.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

Surreal riveted sea forts once protected the Kent shores from German attack.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

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

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

The curios of pharmacist and collector Henry Wellcome.

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

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

One part local history, 99 parts gruesome haunted house.

A hands-off space for graffiti artists to hone and display their skills.

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

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

The atmospheric road was never meant to be so creepy.

A kaleidoscopic warehouse-maze of handmade neon signs.

Famously misunderstood wonder of the ancient world

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

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

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