This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

Ancient catacombs form the foundation for this Rococo orgy of a church.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

For 150 years one family has been producing the iconic hot sauce on a bayou island made of salt.

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

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

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

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

Tracks near this Texas nature site were once thought to support the Creationist belief that man and dino coexisted.

Elvis's own personal tropical hideaway.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

A 200-year-old bar is all that remains of one Mississippi River town's rough-and-tumble past.

A preserved stretch of ancient fossilized trees with an impressive gem collection to boot.

This two-room shotgun shack in Tupelo is the birthplace of a King.

An eerie and beautiful group of columns mark the site of a grand mansion lost to time and fire.

The ill-fated plan to reroute the Mississippi so that Union ships could bypass Confederate fortifications on the river bend.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

A museum in Mississippi celebrates the history of Coca-Cola and the man who brought it to the masses.

The final resting place of the camel who served with the Confederate Army during the Civil War.

Stairs often replace streets on the steep slopes of this old mining town.

An early 20th-century jail not far from the infamous Tombstone, Arizona.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.