The Great Fire of London and the regulation of one-way streets both started in this alley.

A masterpiece of Art Deco architecture hidden in plain sight in West London.

An ornate and disused early 20th-century building has been given new life as a fully operational structure, complete with offices, oyster bar, and a furniture retailer.

The commemorative stone column conceals a secret laboratory.

Its collection includes a broad array of social, geographic, graphic design, and political history.

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

The last four extravagant street signs of London's historic banking street.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

This luxury shopping lane has been protected by its own tiny police force for over a century.

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

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

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

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

Hear the quietest sound from across the dome.

An unusual round church in London with a Templar past.

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

One part local history, 99 parts gruesome haunted house.

Eighty million natural history specimens call this gargantuan museum home.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

An operating lighthouse from the 1860s.

A World War II structure that has stood the test of time.

Hidden within the waterfront hills resides this dilapidated military stronghold.