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

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

This town is home to the world’s largest arch constructed entirely of elk antlers.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

A devilishly named gorge that was a sign of salvation for many pioneers.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

No Gordon Lightfoot song, only a barebones monument to greed.

A popular rock that acted as a waymarker for American pioneers.

This prison-turned-museum is a remnant of the Old West's grizzly, violent past.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

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.

An architect's childhood fantasy treehouse made real.

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

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

The first declared National Monument in the United States.

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 striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

Oddly shaped rock formation, misassociated with a nearby utopian community.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

A house carved into a rock in the 1940s.

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