This historic collection of Native Alaskan artifacts was resurrected through a partnership between the WPA and tribal artisans.

Massive mounds of golden sand look like a desert landscape randomly plopped in an Arctic forest.

This WWII-era military installation once held an entire city within its walls - now, its walls are falling down.

While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

Colorful boxes placed over the dead are left to rot and crumble.

A trading post in the North Pole where children send letters.

Four-story concrete hotel never opened to customers.

The ghostly remains of what was once the world's richest copper mine.

The king of U.S. high points towers over every other peak on the continent.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.