The tennis legend used this racket while breaking the race barrier and becoming the first Black man to win the US Open.

A historic Montreal market that was the city's agricultural hub for over century.

The only example of a Paris Métro sign in use at a subway station outside of the French capital. 

This Rhode Island mansion was a stand-in for the exteriors of Collinwood in the original "Dark Shadows" series.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

These eclectic homes nestled into the cliffs of a Caribbean island were built entirely from scavenged materials.

The larger of two volcanic peaks rising out of the crystalline waters of the Caribbean.

On a small island in the Caribbean, a statue of Napoleon's first wife has been beheaded and covered in red paint.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Macabre astrological automaton clock dating to the late 1400s.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

This artificial cave looks like something out of a fairytale.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

The coffin-shaped church was once home to monks who slept in coffins.

Communism's topsy-turvy effect on Poland has been brought to life in this wacky tourist trap.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

A merchant court dedicated to the fictitious King Arthur is heavily adorned with bizarre Renaissance art.

The site of the first battle of World War II.

In 1927, a biplane disappeared while attempting to complete the first non-stop transatlantic flight between Paris and New York City. This memorial stands at the last place it was seen.

A nude beach alongside a washed-out road.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.