The bar where "The Great Train Robbery" was planned was once a nexus of high society and low morals.

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

The famous polar explorer stands outside the Royal Geographical Society's headquarters.

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

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

This London plaque marks the spot where David Bowie's famous alien made his debut.

The real clothing store that inspired a fictional spy organization's front.

Heralded as the oldest statue in London.

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

The lab where the scientist made his groundbreaking discoveries is preserved on the basement floor of the Faraday Museum.

This luxury shopping lane has been protected by its own tiny police force for over a century.

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

Tucked away behind the mansions of Mayfair, this picturesque garden is a hidden London treasure with a spooky past.

Catacombs turned marketplace.

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

A commemorative plaque at the door pays tribute to an "American Patriot" known for his betrayal.

A discarded movie prop that was the original monolith for "2001: A Space Odyssey."

An architectural oddity hides in plain sight on this iconic London bridge.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

This grand old 80-foot sequoia towers above the buildings in the city’s retail center.

Deep into the lower floors of Pike Place, find a date with fowl fate.

Founded in 1961, this comic shop is said to be the oldest in the world.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

The palatial McDonald's that inspired Wesley Willis.