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 monicker 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.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

A controversial memorial at the place where Captain Cook met his violent end.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

Watch the newest land on the planet form before your eyes.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.