A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The headquarters of a secretive order is also a beautifully-designed park.

Historical trolley restoration and operation at History San Jose, Kelly Park.

A pair of pure white felines guard the entrance to a spot of California real estate established as an artist's haven.

The world's first permanently occupied mountain-top observatory continues to report on the stars.

An ominous concrete cube cuts a dystopian silhouette atop this California mountain.

An all-American grocery store in Paris sells U.S. "cuisine" like Pop-Tarts and Heinz ketchup to homesick ex-pats.

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

The celebrated eyesore created by starry-eyed sweethearts.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

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

The video game-themed street art first popped up in the French city.

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

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

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

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

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

France's national museum of scientific and industrial instruments.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

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

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