Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

A dazzling display of lights and crystals.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

This tower pays homage to a legendary Viking fort established in Massachusetts that never really existed.

In Cold Spring, New York, a shrine containing Godzilla and an assortment of plastic dinosaurs stands dedicated to a teenager who died in a car accident in 1996.

Reforestation in action is the main attraction in this abandoned quarry.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

Saintly bones pressed into a wax effigy of a Catholic superstar.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

BDSM, 1930s Style.

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

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

A poem by Arthur Rimbaud is inscribed on the wall of a street that, while it is only one block long, plays a key role in multiple novels.

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

The vast, legendary catacombs hold secrets much stranger than stacked bones.

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

The narrowest street in Paris.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

A stunning garden filled with fantastical environmental folk art and sculptures.

Mass Grave of 48 colonists killed in a raid by Native Americans and the French in 1704.

Locals say Williams' ghost still haunts the place where she was murdered.