This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

This church on a Tohono O'Odham reservation has stood since 1797.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

These steeply terraced ruins are a stop along the Inca Trail to Machu Picchu.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

Huge stone depressions which may have acted as an Incan agricultural experiment.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

The only example of a Paris Métro sign in use at a subway station outside of the French capital. 

This crumbling industrial fortress has attracted daredevils, filmmakers, and historians.

Two thirds of this Montreal neon icon has survived to flash another day.

The skyline of Montreal includes the silhouette of an unexpected fruit-shaped Canadian staple.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

A 400-square foot model of historic Quebec is the playing field for a state of the art light and sound show.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

A 16th-century Andalusian palace.

The world's largest wooden structure.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.