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

In a largely deserted ghost town, a little brick building recalls its history as a gold rush hub and haven for outlaws.

More than 21,000 images fill this overlooked gem of a prehistoric site.

Home of the International Space Hall of Fame.

The world's first commercial spaceport is a disappointment of cosmic proportions.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

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

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

One of the American Southwest's most extensive collections of Navajo rock art.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

A preserve with 75,000 ancient drawings remains the realm of public – not just scientific – exploration.

On the side of a remote mountain, a stone face bearing an inscription of mysterious origin.

This is one really big nut.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

A cave's rare beauty held a cavernous secret hidden underground.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

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

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

A futuristic temple of light uses prisms and rainbows to create an atmosphere of peace.

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

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.