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

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

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

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

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

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

A memorial for public executions that dates back to the 14th century.

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

The ritual has been performed uninterrupted for nearly 700 years.

This pump on the bad side of Victorian London betrayed a horrifying revelation about the water supply.

One of the oldest remaining Catholic churches in England is home to the hand of a 7th-century saint.

A secluded green oasis amidst the towering skyscrapers, bears an unusual moniker that reflects one of the city's oldest guilds.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

The ruins of a church destroyed by both the Great Fire of London and the Blitz, now turned into a peaceful garden.

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

This sculpture encompasses the emotion of rail travel.

The location of a citizen uprising that led to a gruesome act of mob justice.

These Victorian era devil sculptures were designed to spite a local vicar.

The last four extravagant street signs of London's historic banking street.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Repository for more than 22 million pickled specimens.

This dizzying span over the ancient Algerian city was once the highest suspension bridge in the world.

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

Where condemned pirates met their grisly end at the gallows on the River Thames.