A five-story homage to tea times past.

The sumptuous ceiling was one of the last things Charles I saw before his execution.

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

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

This one has sailed five times as far as Sir Francis Drake's famous ship.

A Roman spa buried deep beneath the City of London.

An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."

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

This 1920s Dutch barge is now a floating bookstore.

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

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

Eighty million natural history specimens call this gargantuan museum home.

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

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

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

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

A centuries-old forgotten underworld lies beneath Malta.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.