A subterranean shelter remains intact under a busy Paris railway station.

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

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

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

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

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

A museum of carnival attractions where you are invited to ride the rides.

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

This shrine to bovine consumption and all things fast food is a slice of culinary history both rare and well done.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

A six-foot pair of socks hangs from a drawer of the world's largest bureau.

This North Carolina store preserves a historic moment in America's movement for racial equality.

This bright yellow relic is the final survivor of a short burst of seashell-shaped petrol pumps.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

These eerie outliers of the lightning bug family glow a mysterious blue color.

A nourishing complex of found object art, paintings, and sculptures that celebrate key figures in Black history.

This giant iron playfully pays tribute to an early 20th-century architectural trend.

Endless rows of boxes of paper records line the hallways of the archaic federal facility where guns are traced.

A giant time capsule not scheduled to be cored until 2040.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

The 10-foot-wide Long Beach home was built on a dare.

These four islands right offshore have waterfalls, colorful lights, fancy buildings, and a secret purpose.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.