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

A cluttered and astounding collection of antiquities and curiosities.

A mysterious artist-run cabinet of curiosities and library.

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

The remains of Crystal Palace Great Exhibition of 1851.

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

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

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

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.

Hear the quietest sound from across the dome.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

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

A historic house left in "dramatic still life."

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

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

Remnants of a Victorian garden feature sitting in public woodland.

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

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

Catacombs turned marketplace.

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

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.

Rebuilt remains of a temple to Roman god Mithras.