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

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

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

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

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

A discarded movie prop that was the original monolith for "2001: A Space Odyssey."

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

This sculpture, residing in a quiet corner of a London park, honors the victims of 9/11.

A student driver's nightmare.

An avant-garde artist is survived by his seaside garden.

Also known as Rye Castle, this 13th-century fortification later became a prison and held one of Rye's most famous criminals.

Chelsea's soldiers were given strict orders when crossing this historic bridge.

The forest that inspired Winnie-the-Pooh's Hundred Acre Wood can be found outside London.

Abstract dinosaur models in London.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

Now isolated, this church was once the center of a bustling village that succumbed to the Black Death.

The elegant structure of this 19th century railroad bridge creates an illusion of infinity.

A beautiful ruin of a 14th-century Plantagenet castle built by a medieval mercenary.

Famously misunderstood wonder of the ancient world

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

This lonely tomb is all that remains of a once-bustling ancient trade hub visited by Marco Polo.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

Eighty million natural history specimens call this gargantuan museum home.

The anatomical-pathological collection of a man who changed surgery.