An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."

You'd never know the houses at 23-24 Leinster Gardens were fakes—until you see the train tracks on the other side.

A quiet memorial to those who died saving others in the heart of the City of London.

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

This one has sailed five times as far as Sir Francis Drake's famous ship.

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

This elaborate Byzantine-style building was designed for a not-so-pretty purpose.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

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

Two plaques commemorate the site of Shakespeare's first theatre.

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

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

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

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

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

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

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

Claiming to be the oldest hat store in the world, this historic haberdashery had a hand (and a head) in the creation of the Bowler.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

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

A naturally mummified 2,000-year-old man.

Giant, friendly pelicans in Central London, the most unlikely of places.

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

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