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

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

A unique geological area spiked with wind-carved rocks that resemble teepees.

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

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

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

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

Legends surround this jagged rock formation in the New Mexico desert.

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

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

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Once in disrepair, this popular Texas stop along iconic Route 66 has been restored to its past glory.

This unusually circular centenarian barn became a Route 66 icon.

A museum packed with instruments, lyrics, and other mementos of the American folk icon.

Along the historic Mother Road is an old gas station with a secret counterfeiting past.

What was once one of the country's largest confectionary plants is now an abandoned ruin, but is still pretty sweet.

A massive bur oak tree believed to be some 500 years old is the centerpiece of this quiet urban greenspace.

In the Shawnee National Forest, amazing rock formations peer through the treeline.

An Art Deco gem that held together the artistic heart of an agricultural community for 92 years.

In a quiet north Chicago neighborhood rests a stunning relic of the golden age of earthenware design.

This abandoned 19th century orphanage started as a boarding school for children of Civil War veterans.

One of the last functioning antique elevators in Chicago.

Internationally known record store and purveyor of "dusties."

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.