Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

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

Home of Howard Hughes' Spruce Goose.

1920's mining camp and environmental education center is serving to protect the surrounding forest, one of the last of its kind in the Pacific Northwest.

A vertically floating hemlock controls the waves and weather at Crater Lake.

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

Only known mainland rookery of the threatened Stellar sea lion.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

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

The magic's in the hole!

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

This highest peak in New Mexico is named after an explorer who had a habit of lending his moniker to peaks.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

A unique geological area spiked with wind-carved rocks that resemble teepees.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

A multi-storied adobe complex has been inhabited for more than a thousand years.

A cave's rare beauty held a cavernous secret hidden underground.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

Legends surround this jagged rock formation in the New Mexico desert.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A museum dedicated to the alleged Roswell Incident.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The only road through the heart of Glacier National Park.

Home to the deepest rift anywhere on Earth.