This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

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

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

A historic hill of tall tales, with one rather special tree.

The Tudor-style cottage in the middle of the square is not quite what it seems.

A domino effect created with Britain’s iconic telephone boxes.

The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

The sculpture of the deceased cockatoo flops atop its personal plinth.

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

An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."

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

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

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

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

Charles Babbage's proto-computer, painstakingly brought to life.

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

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

This 1920s Dutch barge is now a floating bookstore.

An unusual round church in London with a Templar past.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

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