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

Erosion and time have created a naturally-formed water park.

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

The world's second largest rocking chair is found on Route 66 in Cuba... Missouri.

The final remnant of the Arkansas zinc industry is this historically protected ghost town.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

There’s a special club house at the top for the bell ringers.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

One of the world's oldest continually operating bookstores.

The world's largest squirrel statue clutches a pecan bigger than your head.

A 24-hour vending machine restocked daily with homemade full-sized pecan pies.

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

Once an ancient sea, this landscape of rocky ravines is filled with the fossils of ancient marine life.

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

A Kansas nature preserve protecting the plants and animals that once stretched across central North America.

A wacky, UFO-shaped house in a suburban neighborhood.

The highest waterfall between the Rockies and the Appalachian Mountains.

This sacred space and gathering spot for the Wyandot Nation has been the surrounded by controversy and confusion.

Overshadowed by quilts, the artistry of these patterned textiles went underappreciated for too long.

A 20-foot-tall quarter commemorates George Washington’s ties to Bedford County.

This rusted car found in Petrified Forest National Park's Route 66 exhibit may be the most photographed abandoned car in the country.

The Grand Canyon of Texas.