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

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

Once defending the city of New Orleans from invasion by sea, this fort faces an uncertain future.

The world-record holder for the longest bridge stretching continuously over water.

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

This grubby wall is said to be one of the Earth's esoteric energy centers.

The blinking light atop the iconic landmark has been sending secret messages for decades.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

Today this bizarre rooftop phone booth seems like a piece of kitsch but it was once used to spot disastrous storms.

A flooded Mexican cave that hides a river beneath the water.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A gem in the small Missouri town where Winston Churchill coined the term "Iron Curtain" and effectively began the Cold War.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

While he no longer has an eatery to give him context, this off-brand Paul Bunyan still holds his giant hot dog with pride.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

An overlooked memorial honoring the local Washington residents who died in World War I.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

Decades before the scandal, this staircase on the river was a literal "water gate."