North Carolina's finest examples of Native American pictographs have survived for 5,000 years.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

A 120-year-old legend concerning an empty circular patch in the North Carolina woods.

Bigfoot prints, Feejee mermaids, and haunted dolls on display in a tiny North Carolina town.

Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

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

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."

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

An entire town preserved as a historic landmark.

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

Mining town from the late 1890s, once home to Calamity Jane.

This 19th century granite fortification is one of the most well preserved forts in New England.

This Maine bridge may be the last wire-supported bridge of its type in the world.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

Beautiful waterfalls grace a canyon visibly torn by a violent tornado.

The remains of this visionary community can still be found much as it was a century ago.

A theme park featuring a replica of Noah's Ark built to the measurements specified in the Bible.

The world's longest known cave system.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.