English antique dealers with a taste for the unusual.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

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

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

The television series' iconic giant foot was borrowed from this classical painting.

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

Repository for more than 22 million pickled specimens.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

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

A network of concealed passageways lies within a busy London Underground station.

A mysterious artist-run cabinet of curiosities and library.

A cluttered and astounding collection of antiquities and curiosities.

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

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

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

Hear the quietest sound from across the dome.

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

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

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

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

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

Remnants of a Victorian garden feature sitting in public woodland.

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