London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

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

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

Scattered throughout London are ancient remnants of the city's former bounding wall.

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

The remains of Crystal Palace Great Exhibition of 1851.

The largest of London's subterranean rivers and once a mad, bad center of London life.

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

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

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.

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

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

Rebuilt remains of a temple to Roman god Mithras.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

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

One part local history, 99 parts gruesome haunted house.

An unusual round church in London with a Templar past.

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

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

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Banksy gives themself artistic license with this piece of London street art.