Featuring a Loretta Lynn display and a re-created coal mine exhibit.

An abandoned munitions factory with a shot tower continues to wage war on the surrounding environment.

This abandoned ironworks was once the most important military supplier in America.

One of the first commercially successful anthracite-powered iron-making operations in North America.

What was once the second largest steel mill in the US is now a sprawling complex of modern ruins.

The place where Samuel "Slater the Traitor" brought the Industrial Revolution to America.

These disused steel furnaces are now haunting ruins that may one day be a national park.

A well-preserved example of an early industrial operation in the northeastern United States.

All that's left of the quintessential "cabin in the woods."

An enormous factory from the late 1800s sits abandoned on Cleveland eastside.

A huge railroad museum with over 100 pieces of rolling stock focusing on the railroad history of Pennsylvania.

The train collection of an eccentric New England seafood mogul is now a National Historical Site.

This functioning mill was built in the 1970s using parts from several other West Virginia mills.

Designed by famed 20th-century architect Cass Gilbert, the future of this abandoned 1908 rail station is currently in limbo.

A 100-foot metal tower and swinging bridge that provides stunning views of mountains in five states.

The ruins of this once-grand mansion are linked to one of the country’s most popular clothing brands.

Built in the 1850s, this church was of the first five churches constructed in Harper's Ferry.

This shale formation along the Appalachian Trail once inspired the third president of the United States.

Amazing views of Long Island Sound can be seen from this mountaintop tower.

A unique bridge with an equally unique view.

The ruins of a resort and casino sit on the banks of this blue hole spring that pumps 70,000 gallons of warm, clear water every minute.

The well-preserved remnants of a bridge that once made up a WW1-era military railroad.

The metal spire on the roof of this tower was intended as an airship docking station, but it was never actually used.

A 315-foot spire jutting out from the Blue Ridge Mountains makes for breathtaking views.