A statue high in a hill that represents how Buffalo Bill got his name.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

Curious rock formations in a tiny Kansas state park.

Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.

A sobering scientific reminder of the human damage caused by the advent of the nuclear age.

Da Vinci's equestrian statue, 500 years in the making.

Elvis's own personal tropical hideaway.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

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

The world's longest known cave system.

A bizarre house filled with an astounding array of collections.

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

A museum dedicated to the alleged Roswell Incident.

A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

Abandoned railroad tunnel is home to a colony of three million Mexican free-tail bats.

A Hawaiian stairway to heaven—that you can't climb.

This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.

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

Strange physical sensations and optical contradictions keep visitors coming back for more.

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

One of the largest crucifixes in the world stands 55 feet tall in a secluded, wooded area of northern Michigan.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

World's largest Christmas store.