A boulder so big and tough, they had to turn it into a landmark.

These springs were once the source of a tourism boom to Sulphur Springs.

A free museum that memorializes the deadliest river flood in American history, and the civil engineering efforts to tame the Mississippi River.

The entire history of the U.S. Space Shuttle Program is painted on an enormous roadside water tank.

Three witches are said to be buried beneath these unmarked concrete graves.

A Colorado store that specializes in all things spiritual, metaphysical, and witchy.

Six separate cemeteries became one, on the grounds of a former schoolhouse.

Amtrak's least-used stop in the entire country sits in a tiny West Texas town.

A plaque recognizes "unquestionably the most widely published photograph in rural electrification history."

You can dig up your own crystals in the quartz capital of the world.

Hundreds of graffiti artists have decorated this flood-wall on the west bank of the Mississippi River.

At this rural museum, visitors can experience "Boomtown U.S.A.," a lifelike re-creation of an oil boomtown in the 1930s.

After an Illinois church was struck by lightning and burned down, Frank Lloyd Wright designed this replacement.

This rural roadside cross marks the farthest point of Coronado's expedition, and the place where the Catholic faith first came to America.

A 200-year-old live oak on the banks of Lake Pontchartrain.

Established in 1890, this Jacksonville institution is the longest running music venue in the state of Florida.

The golden age of flight captured in a downtown airport.

Iconic figures in concrete and steel in the High Plains of Texas.

This replica of a 16th-century French settlement memorializes one of the earliest attempts at a European settlement in North America.

Some believe this tree to be more than 1,500 years old.

Long before Europeans arrived, Native Americans built an artificial island out of shells that has withstood a millennia of hurricanes.

This ranch on the banks of the Rio Grande is home to a little-known LGBTQ history of Mary Cabot Wheelwright, Marie Chabot, and two-spirit Navajo weaver Hastiin Klah.

This 47-foot chile pepper sculpture welcomes Scoville heat unit obsessed tourists to the Big Chile Inn.

After being abandoned for decades, Oklahoma’s first air-conditioned theatre was reborn in the new century.