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

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

This magnificently macabre shield shows the power of chivalrous love in medieval times.

Down a pint of ale where the Bishop of Ely's servants slept in 1546.

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

The medieval woodcut-style artwork chronicles life in medieval London.

At almost 1,000 years old, this is the oldest known door in all of Britain.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

This bewitching Babylonian goddess haunts a hallway of the British Museum.

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

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

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

A quiet memorial to those who died saving others in the heart of the City of London.

A monument to the thrice mayor of London who according to lore made his fortune by selling his rat-chasing cat.

The commemorative stone column conceals a secret laboratory.

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

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

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

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

This artist's home turned gallery/museum preserves the creator's love of "Eastern" influences.

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

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

A naturally mummified 2,000-year-old man.