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

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.

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

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

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

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

The remains of Crystal Palace Great Exhibition of 1851.

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

The final resting place to 300 Victorian-era pets hides inside the city park.

Hear the quietest sound from across the dome.

An unusual round church in London with a Templar past.

Rebuilt remains of a temple to Roman god Mithras.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

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

Eighty million natural history specimens call this gargantuan museum home.

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.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

One of the earliest graveyards in the region.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.