This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

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

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

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

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

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

Dictionary Johnson’s favorite feline.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

Claiming to be the oldest hat store in the world, this historic haberdashery had a hand (and a head) in the creation of the Bowler.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

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

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

The Columbia Road Flower Market is now open every Sunday, rain or shine.

Traveling collection of amazing automata.

This home on a quiet suburban street is completely covered with vibrant mosaics.

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

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

The cedar tree in Highgate Cemetery earned its title by accident.

Public access to clean drinking water was an instant hit among the masses.

A musical composition 1000 years in length plays at the Trinity Buoy Wharf in London.

The childhood home of Earth's alien chameleon is a humble Brixton flat.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

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

Two plaques commemorate the site of Shakespeare's first theatre.