One of the largest Native American shell middens stands 30 feet tall.

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

Spectacular views await visitors to this lake.

A classic mystery spot complete with spots that are said to make you shrink or grow when you stand on them.

Touch an actual dinosaur bone at this eclectic trove of Rocky Mountain treasures.

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

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

A collection of 16,000 antlers crammed beautifully into a small shed.

The formidable fowl can be found standing near an isolated hiking path.

The highest point in Montana is as rugged and singular as the state itself.

A rapidly disappearing glacier filled with extinct grasshoppers, perfectly preserved in the ice.

For thousands of years, Native American hunters drove buffalo straight off this cliff in Montana's Yellowstone Country.

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

An architect's childhood fantasy treehouse made real.

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

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.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Most historians agree that the so-called "Gentleman Pirate" wasn't much of either of those things.

The oldest liquor store in the country is a model of resilience and mischief.

This mysterious hill seems to pull objects uphill.

At the turn of the century, a chair like rock sat at the top of the falls and hosted the winner of a local beauty contest.

One of the first schools in the U.S. to admit students without regard to race or gender.