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

The Great Fire of London and the regulation of one-way streets both started in this alley.

The bones of two medieval royal lions were discovered at the historic fortress.

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

This ancient Egyptian obelisk still bears the wounds of World War I.

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

The British monarchy's stamp collection is one of the most impressive in all of Europe revealing generations of royal nerdery.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

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

The commemorative stone column conceals a secret laboratory.

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

The pretty iron lamp is a reminder of the architecture underneath London's streets.

The ritual has been performed uninterrupted for nearly 700 years.

The taxidermied remains of a once-great parrot.

This museum inside a museum tells the story of London's timepieces.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

This one has sailed five times as far as Sir Francis Drake's famous ship.

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

The remains of the great moral philosopher reside in a university in London.

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

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

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

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

This luxury shopping lane has been protected by its own tiny police force for over a century.