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

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

Repository for more than 22 million pickled specimens.

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

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

The final resting place to 300 Victorian-era pets hides inside the city park.

An incarceration museum on the spot of possibly the oldest prison in England.

Eighty million natural history specimens call this gargantuan museum home.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

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

A cluttered and astounding collection of antiquities and curiosities.

London's smallest police station is barely the size of a phone booth.

Catacombs turned marketplace.

A mysterious artist-run cabinet of curiosities and library.

Remnants of a Victorian garden feature sitting in public woodland.

A historic house left in "dramatic still life."

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

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

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

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

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

Hear the quietest sound from across the dome.

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