The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Elvis's own personal tropical hideaway.

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

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

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

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

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

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

The LSU mascot lived on the college campus in one of the most impressive tiger habitats in the country.

A 19th-century Gothic, castle-like statehouse by the Mississippi River.