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

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

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

The world's largest collection of witchcraft regalia.

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

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

On the eve of a condemned prisoner's death, this bell rang 12 times outside their cell.

The pockmarks across the building's facade are remnants of the Blitz.

This East End pub gained notoriety as the site where gangster Ronnie Kray publicly shot a rival.

A faded reminder of what was once a common sight in London during the Blitz.

This historic building displays the remains of a victim of the devastating 14th-century plague.

The pretty iron lamp is a reminder of the architecture underneath London's streets.

Museum dedicated to the UK's first charity for abandoned children, with keepsakes of the mothers who left them behind.

More than a million titles fill the labyrinthine shelves of this prestigious private library.

Where condemned pirates met their grisly end at the gallows on the River Thames.

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

A famous burial ground with a history both grim and literary.

Public access to clean drinking water was an instant hit among the masses.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

Dictionary Johnson’s favorite feline.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.