19th century cemetery hidden in Brooklyn's Prospect Park.

Commemorating the spot where the famous scientist fed his pigeons.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

This study room in the New York Public Library saw the creation of one of contemporary America's greatest traitors.

The only arched bridge made of stone on the entire Mississippi River.

When flour explodes, it's not a pretty sight.

A bronze statue on a downtown corner honors Minneapolis's favorite career gal.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The final resting place of New Orleans' most famous voodoo priestess.

Every year model trains zip through a miniature New York City that's now 150 landmarks strong.

This highest peak in New Mexico is named after an explorer who had a habit of lending his monicker to peaks.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

This popular pilgrimage site offers a hole filled with holy healing dirt.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

A unique geological area spiked with wind-carved rocks that resemble teepees.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

A multi-storied adobe complex has been inhabited for more than a thousand years.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.