On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

This museum tucked below a charming cafe gives a brief snapshot of photographic history.

The Tudor-style cottage in the middle of the square is not quite what it seems.

This 19th-century pub features stained-glass windows celebrating Victorian-era "champions."

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

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

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

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

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

The broken skateboards that became a poignant memorial to a murdered skater.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

A haunting monument dedicated to the Royal Naval Air Service and the Fleet Air Arm.

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

A living memorial to the trees London lost during the Great Storm of 1987.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

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

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

A former fortified tower now houses a collection of classic communications equipment.

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

On a wall in linear London, a plaque hangs at the high water mark of one of the worst floods in fictional Kcymaerxthaereal times.

Formerly known as Saville Theatre, this mid-20th-century entertainment hub includes an ornate frieze.

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

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.