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

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

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

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

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

There's an exclusive Beefeaters pub hidden in the Tower of London.

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

Pop culture has helped to keep this iconic British building from being destroyed.

This London plaque marks the spot where David Bowie's famous alien made his debut.

The largest of London's subterranean rivers and once a mad, bad center of London life.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

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

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

London's smallest police station is barely the size of a phone booth.

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

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

The city of Manchester quietly unveiled this tribute to a 19th-century massacre.

Manchester salvaged this sculpture of the adopted Mancunian when it was no longer wanted in Ukraine.

Manchester's abandoned train depot lingers in a post-industrial purgatory.

This rocky outcrop served as a quarry for some of the bluestones that sit at the center of Stonehenge.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

A remarkable feat of Victorian engineering across the Firth of Forth.

Glasgow's own "tipsy" temperance monument.

This cannonball embedded in the side of an Edinburgh house once served a surprisingly pedestrian purpose.