A 200-year-old prison that now houses a peculiar crime museum.

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

Below a historic English market town lies a secret underground city complete with kitchens, laundries, storerooms, and an underground lake.

The decaying ruins of Wales' first asylum for the mentally ill.

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

Museum about life, death, and cannibalism in the Stone Age.

Repository for more than 22 million pickled specimens.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

A collection dedicated to the treatment of disease, held in London's oldest hospital.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

The largest greenhouse in the world is home to over one million types of plants.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

Eighty million natural history specimens call this gargantuan museum home.

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

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.

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.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

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.