The third tallest lighthouse in America once guided author Stephen Crane to safety.

Town of spiritualists and mediums in Florida.

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

A real (but thankfully not live) missile stands tall as a monument to the United States military in the small town of Cordele.

This 13-foot smiling peanut in Georgia helped Jimmy Carter win the 1976 presidential election.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

America's post-nuclear-attack chambers of Congress.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Elvis's own personal tropical hideaway.

A Memphis park where you can walk the whole Mississippi River in one go.

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

This replica of the Greek structure is in the heart of Nashville.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

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

This erect, phallic geological spire wasn't always named so domestically.

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

The world's longest known cave system.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

This shallow cave got its name from copious amount of human bones found inside.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

A slab of sandstone covered with mysterious 1,000-year-old rock carvings from a vanished North American culture.