Collection of vintage trailers double as hotel rooms.

The lobby of this hotel near the U.S.-Mexico border features a stained-glass mural that measures 42 feet long and 6 feet tall.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

This open-pit mine is now an abandoned symbol of Bisbee's copper-mining heritage.

This Old West hotel, the longest in continuous operation in the state of Arizona, is claimed to be haunted.

Stairs often replace streets on the steep slopes of this old mining town.

A mistaken marker makes an erroneous claim along the historic Old Divide Road.

At an isolated roadside rest area stands a monument marking where famous Western star Tom Mix died in 1940.

During World War II this was the site of an "honor camp" used as a prison for draft dodgers, Native American conscientious objectors, and Japanese-Americans—including a man who brought his case against the camp to the Supreme Court.

This church on a Tohono O'Odham reservation has stood since 1797.

Explore a misty river canyon from a metal bridge system.

This remote camping site offers incredible stargazing opportunities.

The world's largest military aircraft cemetery.

Legend says train robbers stashed their gold within the depths of this unusual cave.

This iconic 1958 tower welcomes air travelers to Tucson with neon-lit letters and architectural style.

America's only nuclear missile silo open to the public.

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

Once a dining hall for boarding school students, this lodge was a popular haunt for nuclear physicists working on the Manhattan Project.

These aggressively sustainable art homes look like something out of 1970's science fiction.

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

The largest copper mine in Arizona, this enormous open pit emerges from the hills like an alien landscape.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

The final resting place of the living embodiment of the famous Forest Service symbol.

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