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

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

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

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

The television series' iconic giant foot was borrowed from this classical painting.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

A cluttered and astounding collection of antiquities and curiosities.

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

The curios of pharmacist and collector Henry Wellcome.

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

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

An unusual round church in London with a Templar past.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

A tongue-in-cheek arcade where the games are based on everyday life.

Eighty million natural history specimens call this gargantuan museum home.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

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

A museum devoted to the victims and the survivors of the most catastrophic fire in American history.

This odd-shaped relic from the 1964 New York World's Fair found its way back home to Wisconsin.

The only Frank Lloyd Wright-designed structure in the architect's hometown.

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.