In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

The sunken structure looks like the victim of a catastrophic flood.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

At the top of the hour, figures of the London department store's two co-founders emerge and bow to each other.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

No one knows who created the statues or if they are arranged properly—let alone the artwork's real name.

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

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

Classic game cookery takes center stage at what's widely considered London's oldest restaurant.

A domino effect created with Britain’s iconic telephone boxes.

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

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

An artistic tribute to the famous singer, just around the corner from where he was born.

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

This coffee shop lies hidden beneath a historic church.

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

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

Hear the quietest sound from across the dome.

A hands-off space for graffiti artists to hone and display their skills.

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

Banksy gives themself artistic license with this piece of London street art.

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

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