A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

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

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

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

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

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

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

A motel dedicated to Southwestern nostalgia.

Limestone caves with spectacular showcase chambers.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

Ancient pueblos built into the base of a natural canyon wall.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The world's largest military aircraft cemetery.

A spiritual vortex among the red rocks in Sedona.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

A geological mystery on Camelback Mountain.