These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

Buried for centuries, this hidden cellar is all that remains of London's medieval Whitefriars Monastery.

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

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

The fences outside some of South London's estates are made from recycled World War II stretchers.

An architectural oddity hides in plain sight on this iconic London bridge.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

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

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

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

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.

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

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

Hear the quietest sound from across the dome.

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.

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

The 10th-tallest pyramid in the world, this former sports arena is now home to a massive Bass Pro Shops store.

Home to drunken tower-climbing goats... seriously.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

A towering tribute to the Godfather of Soul.