A man-made island in scenic San Francisco Bay.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

A historic presidential getaway on the continental United States' southernmost island.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

This anatomical sculpture raises awareness about violence against women and promotes gender equality.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

What looks like a normal building is really a hollow facade hiding a subway vent.

The tomb of history's greatest potato promoter is surrounded by tubers.

During the summer months, giant teddy bears take over Paris near Les Gobelins metro station.

The approximate spot where the last Grand Master of the Knights Templar was put to death.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

A Masterpiece with a Tragic History.

The neighborhood of Eagle Rock is named after a gigantic boulder with a shadowy surprise.

In this Parisian garden's grotesque former life as a zoo it fed exotic animals to the bourgeois and put humans on exhibit.

This pair of running lions engraved on animal bone is one of the earliest artistic depictions of big cats.

This prehistoric figurine is the oldest known realistic depiction of a human face.

César Baldaccini's iconic sculpture of a 40-foot thumb stands tall in La Défense.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.