This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

The largest wooden building in the world now houses a fascinating collection of aircraft.

A Roman-style column in Oregon hides a spiral staircase inside.

A massive sea stack famous for its appearance in The Goonies.

The world's largest Holstein cow.

A true roadside icon standing on the same plains that the herds once roamed.

Three legendary, living albino buffalo roaming their pastures for all to see.

Between Missoula and Spokane, a family-owned travel center has an unusual museum in the back.

A smoke stack so large, the Washington Monument could fit inside!

New fungal and bacterial species call this deadly lake home.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

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

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

Native Americans built this circle of stones, which was used to predict astronomical events.

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

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

A beautiful geyser under environmental threat.

The first declared National Monument in the United States.

Supposedly Satanic numbers adorn this preserved submarine sail.

Home to the deepest rift anywhere on Earth.

A classic carnival ride that was carved to be untouchable.

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

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

High in the Rockies the third largest statue in the U.S. opens her welcoming arms, and lights up the night sky.