This unusual lava tube spouts seawater during high surf.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

The oldest operational cathedral in the U.S. has one shell of a way of projecting speakers' voices.

Shop for books in the New Orleans house where William Faulkner once lived.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

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

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

The only rotating bar in New Orleans has been slowly spinning since 1949.

The second oldest continuously operating bar in Louisiana.

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

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

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

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

An abandoned town is hidden in Great Smoky Mountains National Park.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

This stately clubhouse has showcased German-American culture for over a century.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

You thought Santa Claus didn't exist, but it turns out you were wrong.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.