Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

This bridge was constructed from the rubble of the infamous Bastille.

A museum dedicated to one of Paris’s most famous residents, tucked into a corner of one of the city’s most famous squares.

Dedicated to the history and culture of smoking, this small museum now includes a vape lounge.

The Sun King's military models, saved from the Louvre.

The Argonaute submarine was the French navy's pride and joy in the 1950's.

A glamorous hotel that once accommodated French resistance fighters and concentration camp survivors.

Claude Monet was baptized in this lavishly ornate Paris church.

A gruesome combat between a hunter and a furious momma bear.

For more than a century, revolutionary graffiti has marked the wall of a Parisian church.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

A haunting collection of the vanished and disappearing natural world.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

In addition to escorting prospective couples to and from ballrooms, this lane was also a place for gentlemen to settle scores.

Eighteenth-century home, where Herschel discovered the planet Uranus.

This ancient bridge made of stone slabs is said to be reserved for the devil to sunbathe.

A miniature replica of the canine that became the logo for a large recording company.

An authentic, seaworthy replica of the ship that sailed to Newfoundland in 1497.

It houses a menagerie of wondrous taxidermy specimens from around the world, including the remains of a famous gorilla.

England's steepest street has such a drastic incline that locals tie their parked cars to lampposts when it gets icy.

You'd never know the houses at 23-24 Leinster Gardens were fakes—until you see the train tracks on the other side.

A friendly pub with a sordid past in cock fighting.

A decommissioned tube carriage within a London museum hosts a regular pop-up supper club.

This 19th-century pub features stained-glass windows celebrating Victorian-era "champions."