The tallest waterfall in West Virginia.

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

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

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

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

Abandoned blast furnaces are an enduring reminder of Scranton's once booming iron business.

A museum dedicated to the history of electric interurban transit near the home of the first electric trolley system in the United States.

This mesmerizing and surreal landscape features intricate patterns of white and red sandstone.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.

Oddly shaped rock formation, misassociated with a nearby utopian community.

These tall, red sandstone pinnacles outside Moab are often forgotten amid their more famous neighbors.

Walk through the sets of old western films at this small museum in Utah.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

An Ancestral Puebloan ruin that appears to burst into flames in the sunlight.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

The location where the iconic movie character declared it was time to go home.

This magnificent natural sandstone bridge is one of the largest in the world and is an iconic symbol for Lake Powell.

Most-visited and most-photographed slot canyon in the American Southwest.

Dramatic river bend surrounds a natural red-rocked pedestal.

These mid-century motels once housed the workers who built the Glen Canyon Dam.