A mysterious shape catches the eye in this 16th-century painting.

An unassuming London park is actually a pilgrimage site for modern clowns.

This ancient Egyptian obelisk still bears the wounds of World War I.

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

There's an exclusive Beefeaters pub hidden in the Tower of London.

Dictionary Johnson’s favorite feline.

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

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

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

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

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

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

Scattered throughout London are ancient remnants of the city's former bounding wall.

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

A cluttered and astounding collection of antiquities and curiosities.

Hear the quietest sound from across the dome.

Eighty million natural history specimens call this gargantuan museum home.

The curios of pharmacist and collector Henry Wellcome.

One part local history, 99 parts gruesome haunted house.

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

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This 18th-century sundial was designed to calculate the date of Easter each year.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.