A collection of huge, site-specific sculptures sitting in the Montana woods.

This giant meditative chakra sits peacefully in the Flathead Valley of western Montana.

Mining caused an asbestos emergency in this small town.

One home in the historic strip hides secret compartments and the ghostly songs of long-gone canaries.

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

The old fire tower is one of the last of its kind in the United States.

The shortest river in America flows for just 201 feet.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

Once an ancient sea, this landscape of rocky ravines is filled with the fossils of ancient marine life.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

This geodesic gallery holds a collection of painted spheres that make traditional canvases look lazy by comparison.

The first declared National Monument in the United States.

The oldest still-existing mosque in the United States sits in a remote prairie in North Dakota.

This erect, phallic geological spire wasn't always named so domestically.

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

An architect's childhood fantasy treehouse made real.

A beautiful geyser under environmental threat.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

A bizarre house filled with an astounding array of collections.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.