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

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

London's old-school healing garden.

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

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

The fences outside some of South London's estates are made from recycled World War II stretchers.

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

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

A portly statue of a golden boy commemorates an unusual cause of the Great Fire of London: the sin of gluttony.

A unique tribute to the millions of animals who served and died for the British military.

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

This macabre painting of a Shakespearean scene looks like something out of a nightmare.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

A pair of club-wielding guardians stand watch over London's first public clock to feature a minute hand.

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

A hands-off space for graffiti artists to hone and display their skills.

This third-generation institution is one of the last in London that still cures its own salt beef for epic sandwiches.

One part local history, 99 parts gruesome haunted house.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

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

This ancient Egyptian obelisk still bears the wounds of World War I.

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