In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

A museum of natural history, Edwin Carter's original log cabin home and workshop houses taxidermy specimens.

This open-air reconstruction of an Old West town, a cross between a theme park and a museum, provides an immersive historical experience.

One Austrian's singular yard is now preserved as a folk art garden of concrete wonders.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

A wonderland of caves in eastern Iowa.

This whimsical sculpture garden is a local treasure.

These modest Midwestern formations are kin to Niagara Falls' impressive cliffs, more than 600 miles away.

Chilly air billows out from the entrance of an abandoned mine on a steep hillside, providing a refuge for Ice Age fauna and flora.

Despite time, colonization, and the brutal New Mexican heat, these Pueblo ruins still stand.

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

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

A small side chapel in Santa Fe's basilica is home to the oldest statute of the Virgin Mary in North America.

On the edge of the Valles Caldera National Preserve, these rock formations create an eerie landscape.

A beautiful red-faced slot canyon in northern New Mexico.

The 7,000-year-old calcium carbonate formation creates a magnificent natural bridge.

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

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A sprawling collection of over 106,000 toys from around the world.

This sculpture perfectly models the molecular structure of a drug that was never produced.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

Adobe ruins punctuate the beauty of an 800 foot canyon carved by the Canadian River.

The ruins of this abandoned fort now stand as a picturesque reminder of America's march West.