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

One part local history, 99 parts gruesome haunted house.

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

The bronze uniforms commemorate the vital role of women during World War II.

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

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

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.

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

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

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

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

This overlooked street light once served as a KGB dead letter box.

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

A mysterious artist-run cabinet of curiosities and library.

The secret wartime bunker built on the platforms of an abandoned Tube station.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

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

A bronze bust commemorates the heroism of the secret agents who led covert operations against the Nazis.

A faded reminder of what was once a common sight in London during the Blitz.

This ancient oak plays host to carvings of magical elves, gnomes, witches, and other creatures prominent in local folklore.

A relic from one of London's worst 19th-century slums.

The remains of a historic football stadium that once hosted 50,000 spectators.

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.

This striking statue brings a scene from the African savannah into central London.