A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

Paris' linguistic guide to the international language of, yes, love.

The Great Fire of London and the regulation of one-way streets both started in this alley.

Only a few pieces remain of the structure that carried people and goods across the Thames for some 600 years.

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

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

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

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

A public art piece that barely gets recognized, but then that might be the point.

The most loyal of little dogs, or a Victorian era publicity stunt?

Protecting the dead from opportunistic body snatchers.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

This grave marks one of few bodies retrieved from the disastrous Franklin Arctic expedition.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

Huge winged monument in the United Kingdom.

The final resting place to 300 Victorian-era pets hides inside the city park.

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

Hear the quietest sound from across the dome.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

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 bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

This 1920s Dutch barge is now a floating bookstore.