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

A museum wholly devoted to juvenescence.

More than a million titles fill the labyrinthine shelves of this prestigious private library.

The first public library in the Americas has more than 45,000 books dating back to the 15th century.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

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

Classic game cookery takes center stage at what's widely considered London's oldest restaurant.

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

There's an exclusive Beefeaters pub hidden in the Tower of London.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

A musical composition 1000 years in length plays at the Trinity Buoy Wharf in London.

This coffee shop lies hidden beneath a historic church.

A Roman spa buried deep beneath the City of London.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

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

Buried for centuries, this hidden cellar is all that remains of London's medieval Whitefriars Monastery.

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

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

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

Abstract dinosaur models in London.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

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

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.