Ruins of an American Civil War iron forge still survive today.

An unfinished rail tunnel that has since been used to house cheese and bats.

The oldest bridge in South Carolina may have been designed by the same man who created the Washington Monument.

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

35,000 grape hyacinths flow like water down a garden hill.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

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

An unassuming secret door once led to a legendary watering hole.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

This airfield is home to a number of retired vintage planes in various states of disrepair.

This granite rock face is named for the magnificent reflection that occurs when the sun hits it just right.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

Art Deco urban decay at this historical building.

A wedding chapel, vintage clothing shop, and bar all under one roof.

This Transylvania County city is home to a rare white squirrel population that is descended from an escaped carnival animal.

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

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

This bridge is haunted by the ghost of a distraught mother.

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

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

These eerie outliers of the lightning bug family glow a mysterious blue color.

Banksy gives themself artistic license with this piece of London street art.