This striking art museum holds an amazing series of curiosity cabinets.

A historic and oft-filmed prison stands in a Chicago suburb.

This national park dedicated to the tallgrass prairie ecosystem still displays its military past.

This historic Illinois "Muffler Man" has been converted from axe-touting lumberjack to rocket-wielding space ace.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

The last remaining vestige of a popular 1999 public art display.

Illegal drag racing two stories beneath Chicago’s streets.

The fifth-longest natural arch in the world, and the longest outside China.

The highest peak in Utah is the hardest to reach, but only if explorers choose the hard way.

Built for a motel, this cartoon dino is now a symbol of the area's paleontological heritage.

When ecosystems collide in the arid Southwest.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

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

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

Take a dip in the world's largest mineral hot springs pool.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Colorado’s most beloved glacier is an imposter.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

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

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

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

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.