This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

This modest marker near Notre Dame identifies the very center of Paris.

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

A museum of magic with a Sadist past.

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

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

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

A quaint medieval millhouse hovers surprisingly above the waters of the Seine.

The famous winding walk at Chartres is surrounded in mystery and myth.

A once drab public housing estate is transformed into a colorful gallery of trompe l’oeil murals.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

This 12-foot-tall T-rex is the largest K’Nex skeleton sculpture in the world.

What else would you call a playground hidden in Alabama's oldest and largest cemetery?

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

Crumbling ruins mark the site of a couple's grisly murder in the woods.

This angular brutalist playground turns playtime into modern art time.

A colorful square marks the heart of the city's LGBTQ community.

Scattered around Atlanta are little doors with big charm.