This huge work of functional public art replaced a landfill in New Jersey's Meadowlands.

One of the oldest carousels in the United States is still running in the coastal village of Watch Hill.

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.

A decommissioned military complex that's now a modern industrial park.

How a century-old glass factory in Queens became a concert venue and arts center.

In this Parisian garden's grotesque former life as a zoo it fed exotic animals to the bourgeois and put humans on exhibit.

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

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

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

Noirish green neon marks the location of one of the oldest private detective agencies in France.

A contemporary art installation housed within a Gothic cathedral.

A museum dedicated to one of Paris’s most famous residents, tucked into a corner of one of the city’s most famous squares.

The French leader's hat sits in a glass case at the oldest restaurant in Paris.

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

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

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

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

The site of the daring river crossing that changed the course of the American Revolution.

A granite monument honors a beloved World War II canine mascot.

Before online banking and smartphone apps, there was "commuter banking" in the subway in Downtown Brooklyn.

A room in New York City that contains 250 cubic yards of dirt.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Every equinox this Maya pyramid puts on a spooky ancient light show.