Nature's biggest mammal swims in landlocked Oklahoma.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

Unicorns, elephants, and bears, oh my!

Possibly the world's only drive-in movie theater with an attached motel.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The world's longest known cave system.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

This grave marks the final resting place of a legendary frontiersman... unless it doesn't.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

Georgia's first brewery is also one of its oldest surviving buildings.

Ruins of a Carnegie family mansion on Cumberland Island.

One of the oldest living oak trees in the Southeast.

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.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.