You can spot this teeny tiny stained-glass window from the Bonifacius bridge.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

A lone medieval church tower marooned among the City of London's skyscrapers

The cedar tree in Highgate Cemetery earned its title by accident.

The world’s second-largest flood defense barrier has protected London for decades.

As seen in the Spice Girls ‘Wannabe’ music video.

Once a 19th-century refuge for immigrants, this pub has hosted performances by Amy Winehouse and the Arctic Monkeys.

This 19th-century Turkish bath house survived the Blitz of London and is now an events venue.

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

The medieval woodcut-style artwork chronicles life in medieval London.

Down a pint of ale where the Bishop of Ely's servants slept in 1546.

This Underground station has been a popular filming location for decades, even before it closed.

One of America's founding fathers lived in this London lodging between 1757 and 1775.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

The plunge pool is a surviving relic of a rowdy royal residence.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

The broken skateboards that became a poignant memorial to a murdered skater.

A measuring mishap led to these artificial stone ladies losing their stomachs.

The commemorative stone column conceals a secret laboratory.

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

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

Black cat statues guard this temple-like Egyptian revival factory.

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