A labyrinth hides in plain sight at each of the city's 270 Tube stations.

Pop culture has helped to keep this iconic British building from being destroyed.

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

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

This hidden green space is the city's second largest conservatory.

London's smallest police station is barely the size of a phone booth.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

One part local history, 99 parts gruesome haunted house.

Eighty million natural history specimens call this gargantuan museum home.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Left by the Devil, an ancient quarry or just plain old erosion, this enigmatic rock pillar rises 28 feet from the hillside.

Every hour on the hour a naked heroine and her leering foil appear from this giant cuckoo clock.

This aging storage facility is the world's largest brick warehouse.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

Gutted during the Liverpool Blitz, this architectural husk has been left destroyed in honor of the dead.

Pyramid shaped monument with a tall tale attached.

The Liverpool street made famous by the Beatles is real.

This ruined medieval castle was the scene of Lord Robert Dudley’s seductive reception for Queen Elizabeth I.

One of the earliest large-scale "hyper" roofs in the U.K. is now a derelict roadside attraction.

The sanctuary seems to either float atop the water or sink into the dirt, depending on the water level.

A preserved block of timber buildings from the city's industrial era in the Middle Ages.

The bombed out remains of the old church were kept intact next to the new one, as a reminder of the futility of war.

All that remains of the only English cathedral destroyed in the Protestant Reformation.