Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

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

Look up from the busy streets to discover how time is kept!

A unique tribute to the millions of animals who served and died for the British military.

A storied London perfume shop that supplies scents for royalty has been operating out of this storefront for nearly 300 years.

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

One of London's lost rivers runs through a pipe over the tracks of this subway station.

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

This coffee shop lies hidden beneath a historic church.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

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

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

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

The bizarre headgear looks like it was made for a fool, not a king.

One of three sites in England that house the National Collection of Arms and Armour.

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

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

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

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

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

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

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

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

The commemorative stone column conceals a secret laboratory.