This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

A large stone map of Arkansas awaits visitors to its highest point.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

A natural formation that resembles a camel resting in the New Mexico desert.

What appears to be a historic cabin nestled within Valles Caldera National Preserve is actually part of an abandoned movie set.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

A frozen oasis lies beneath the scorching New Mexico desert.

Once a dining hall for boarding school students, this lodge was a popular haunt for nuclear physicists working on the Manhattan Project.

This building is a recreation of the gatehouse that separated Los Alamos from the outside world during the era of the Manhattan Project.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

This two-room shotgun shack in Tupelo is the birthplace of a King.

This simple, broken column marks the final resting place of one of America's most famous explorers.

A key producer of charcoal iron in the early 1800s, the structure still stands today.

Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

Two gushing waterfalls of hot spring water within a block of each other.

This unique zoo is the only place in the world where you can see all 15 species of crane.

The remains of a enormous earthen figure of unknown origins cuts across a rural Wisconsin road.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

Volo Bog is the only open-water quaking bog in Illinois, and also the southernmost open-water quaking bog in North America to exhibit all stages of bog succession.

The larger-than-life art installation at Tampa International Airport welcomes travelers to town.

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

A mini Wrigley Field for mini baseball players.

This family driveway also serves as the highest point in Illinois.