Derelict buildings are all that remain of a complex at the site of one of the worst mining disasters in Montana history.

At the time of its completion, it was the tallest dam in the world.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

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

This rustic old building is said to be the most photographed barn in America.

Home to the deepest rift anywhere on Earth.

This giant meditative chakra sits peacefully in the Flathead Valley of western Montana.

Spectacular views await visitors to this lake.

The only road through the heart of Glacier National Park.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A field of nothing but boulders which resembles a giant's gravel driveway.

The real-life site of Ichabod Crane's infamous gourd attack.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

Collapsing castle on the Hudson river was once the storage site of military surplus business.

This stave church nestled in the Catskills was built in the 1960s by a community of Ukrainian immigrants and refugees.

The highest peak in the state of Vermont has some interesting features.

A cable-suspension footbridge that hangs high above the Mill River.

A 60-foot-tall tower provides unparalleled views of the southern Green Mountains.

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

It wouldn't be long after purchasing this farm, Brown would lead his siege on Harper's Ferry.

A small Second Empire-style building is one of only seven remaining lighthouses on the Hudson River.

An enormous cat made of recycled wood scraps.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.