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.

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

Home to the deepest rift anywhere on Earth.

The world's first nuclear power plant is open to visitors looking to role-play a meltdown.

A beautiful geyser under environmental threat.

This scenic gorge is named after one of the most famous Bigfoot attacks in pseudohistory.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

An extraordinary mixture of natural beauty and man-made phenomena.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

According to legend, you must remain completely silent while passing this man-made mound or suffer the consequences.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

The short-lived railroad town in central Oregon has been abandoned since the 1930s.

A rugged lava field dotted with molds of the ancient pines that were growing when the volcano erupted.

The longest continuous lava tube in Oregon.

Only known mainland rookery of the threatened Stellar sea lion.

Contractors in this Oregon town have been stamping their names in sidewalks since 1908.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

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

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

Two massive rock outcroppings on the Oregon coastline.

Mountain known by the Tillamook Tribe as "the place of the supreme deity."