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

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

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

This pub boasts a curious history and may have inspired a Dickens character.

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

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

Rebuilt remains of a temple to Roman god Mithras.

One of the figures in this Celtic sculpture continues to puzzle archaeologists.

This Viking gravestone carved in a rare runic style was dug up from a London churchyard.

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

An unusual round church in London with a Templar past.

This inn of the court provides a fascinating window into London’s legal and architectural history.

A hands-off space for graffiti artists to hone and display their skills.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

Hidden beneath the streets of London is a secret subway that only carried mail.

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

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

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

The bronze uniforms commemorate the vital role of women during World War II.

A living memorial to the trees London lost during the Great Storm of 1987.

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

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

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

After nearly 60 years, there's still a bear at Paddington Station looking for help.