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

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

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

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

The narrowest street in Paris.

The original resting place of Queen Cleopatra and Mark Antony's only daughter.

An extraordinary mix of Phoenician, Roman, early Christian, and Byzantine ruins beautifully set overlooking the Mediterranean.

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

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the 20th century.

The curious underground history of keeping Paris clean.

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

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

One of the few surviving "Wigwam"-themed motels.

The longest navigable underground river in the United States is home to countless blind and albino animals.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

A monument celebrating the idea of reaching inaccessible places.

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

A small poultry graveyard in the courtyard of a popular Key West watering hole.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

A pharmacy built in the shape of a mortar and pestle, now resembles a fancy cocktail.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

Don't blink or you'll miss it.