This innovative mill was built for a legendary gold mine that never came to be.

Built in 1931, this small passageway is believed to be the first modern skyway.

World's largest carved onyx figure stands as a tribute to enduring peace.

A museum within a museum, devoted to history's most questionable medical devices.

This statue of Olympic hockey coach Herb Brooks immortalizes one of the greatest moments in American sports history.

A collection of pianos and more guaranteed to delight anyone interested in music history.

A tribute to Charles M. Schulz, who created the iconic cartoon that features Charlie Brown, Snoopy, and more.

The self-proclaimed gateway to the Extraterrestrial Highway.

Beehive charcoal kilns and slag deposits mark this late 19th century camp centered on a smelter.

Two well-preserved charcoal kilns survive in a remote part of eastern Nevada.

Narrow slot canyons in a badland eroded into soft sedimentary rock provide an otherworldly landscape in this remote Nevada state park.

Ghost hunters have fueled up at this diner for more than a century.

This now-deactivated naval base defended the Florida coast for centuries.

A striking lighthouse with views of the Gulf of Mexico and of a military air show.

The remains of a World War II munitions factory still haunt the fields of this Twin Cities suburb.

There are eight natural springs around town, each with a slightly different taste.

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

A recreation of an Old West apothecary full of curios.

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

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

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

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.