This brick-lined pedestrian walkway was once a railway tunnel used during the Civil War.

Dubbed the "smallest church in America," this tiny sanctuary was a local grocer's dream come true.

A historic dam made famous for its turbines and feature in a Hollywood classic.

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

This lovely burial mound is actually a replica that was installed after archeologists excavated the original.

Georgia's highest point was given its strange name thanks to a simple translation error.

Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

A lighthouse on this West Virginia lake started as a joke, then the forces of nature helped make it a reality.

Take a steam-powered ride straight out of the past on this Appalachian rail line.

Electronic inventions that resulted in products and systems we use every day are on display in this labor-of-love museum.

Rare recess caves fill this unbelievably beautiful Ohio park.

The first American woman to win the Nobel Prize in literature came from the foothills of Appalachia.

In an odd geographic anomaly this city borders two different states on opposite sides of town.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Near-constant high winds deform the trees on Spruce Knob, the highest point in West Virginia.

The world's largest fully steerable radio telescope.

This rural community has attracted both scientists and techno-refugees due to its federally-mandated lack of technology.

This claimant to the title of "smallest church in the 48 states" doubles as an equally tiny, quasi-post office.

A circle of giant painted vases in the former pottery capital of the United States.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Rows of 19th-century brick ovens used to process coal into coke form the center of a wooded park.