Once the future of underwater combat, this old sub is now open for visitors to muck around in.

Artists and musicians now rule over this former rail station.

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

A cluttered and astounding collection of antiquities and curiosities.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

Hear the quietest sound from across the dome.

An incarceration museum on the spot of possibly the oldest prison in England.

The anatomical-pathological collection of a man who changed surgery.

The curios of pharmacist and collector Henry Wellcome.

Catacombs turned marketplace.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

Eighty million natural history specimens call this gargantuan museum home.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

A kaleidoscopic warehouse-maze of handmade neon signs.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

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

The spot where Oxford garnered its name was also home to a medieval philosopher and includes a house covered in statues.

Legend says this public grazing area hasn't been plowed for thousands of years.

The weathered grave of a medieval anchoress who walled herself up in a cell attached to a church.