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

This may be the last of London's wooden pavements, which were once a common sight in the city.

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

These Victorian era devil sculptures were designed to spite a local vicar.

The plunge pool is a surviving relic of a rowdy royal residence.

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

Buried for centuries, this hidden cellar is all that remains of London's medieval Whitefriars Monastery.

The last remaining example of the boatmen's perches that once dotted the south bank of the Thames.

A faded reminder of what was once a common sight in London during the Blitz.

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

This historic building displays the remains of a victim of the devastating 14th-century plague.

This ancient oak plays host to carvings of magical elves, gnomes, witches, and other creatures prominent in local folklore.

The fences outside some of South London's estates are made from recycled World War II stretchers.

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

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

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

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

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

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

The remains of an ancient Roman teenager are memorialized at the base of a modern London landmark.

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.

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