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

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

A clear blue swimming hole with hidden caves, still unexplored.

This museum started as a collection of Manhattan Projects and continues to add exhibits as they are declassified.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

This monument remembers one of the manliest men of the frontier who fought a grizzly before dragging himself 200 miles to safety.

Just a man taking his prehistoric pet for a stroll.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

This super steep hike ascends 2,000 feet in less than a mile.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

When ecosystems collide in the arid Southwest.

The highest bridge in America was built for an almost unnervingly small amount of money.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

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

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

This opulent Pueblo Deco movie palace melds Art Deco and Native American motifs.

In 1967, murder and mayhem disrupted the tranquility along this quiet stretch of Old Route 66.

This sparsely populated town offers a look back in time.

One man’s passion for gas stations is on display along the Rio Grande in northern New Mexico.

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

Eat like pre-Columbian Native Americans in this New Mexico restaurant within the Indian Pueblo Cultural Center.