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

Dictionary Johnson’s favorite feline.

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

An unusual round church in London with a Templar past.

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

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This overlooked street light once served as a KGB dead letter box.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

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

The "shampooer of kings" who opened London's first curry cafe was a celebrity in the 19th century, but is all but forgotten now.

Indents in the pavement are all that remain from a grisly death machine in Paris.

A haunting monument dedicated to the Royal Naval Air Service and the Fleet Air Arm.

Legend has it this gnarled old tree was planted by Tsar Peter the Great during his visit to London.

Legends say that this Art Deco apartment building almost became Hitler's British headquarters.

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

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

More than 450 years ago, an Italian nun became the first woman to paint the iconic subject.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

This coffee shop lies hidden beneath a historic church.

The graveyard is filled with beautiful funerary art and boasts breathtaking views of Florence.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.