The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

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

This spectacular track has run continuously since 1882.

The largest public collection of roses in the United States.

Home to a seasonal waterfall and swimming hole in the Ouachita Mountains.

A glimpse of a waterfall is reached by a steel catwalk along a slot canyon located in an Ouray city park.

Explore 4,000 years of European and American art history in the heart of northwest Louisiana.

The art deco colossus played a role in war and medicine aside from hosting the iconic Louisiana Hayride.

One of the largest publicly funded mural in the country is one city's love letter to itself.

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

This ancient settlement contains some of the largest earthen mounds in North America.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

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

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

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

Foragers once flocked to this big beautiful bayou to hunt for pearls.

A modernist landscape of water and sci-fi concrete.

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

The Louisiana sandwich shop that served Bonnie and Clyde's last meal is a museum that chronicles the criminal couple and honors the Bienville Parish lawmen who stopped their crime spree in an ambush.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

A museum of unusual collections, mini-towns, and a half-dog, half-alligator.

This relatively recently abandoned brewery is a tragic reminder of the continuing effects of Hurricane Katrina.

The highest point in Louisiana, Driskill Mountain at 535 feet above sea level.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.