This former fire tower is now a rustic observatory that offers amazing views of eagles, hawks, and the Appalachian Mountains.

The world's largest fully steerable radio telescope.

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

A melancholy guardian doubles as a judicious godmother to this small town cemetery.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

The isolated final resting place for perished coal miners.

The oldest automobile museum in the United States.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

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

This Buffalo museum hides an Art Deco gas station designed by Frank Lloyd Wright.

Launch vegetables using oversized slingshots at this Fingerlakes winery's roadside attraction.

Oldest existing wire suspension bridge in the United States.

An art deco ice cream shop covered in vintage train station tiles.

An abandoned theme park with a strange and tumultuous past.

One of the few surviving "Wigwam"-themed motels.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

Patrick Dougherty's fantastic living tree sculptures, mind-blowing but temporary.

This museum collects over a century of automobile history including the iconic car from The Muppet Movie.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

The longest navigable underground river in the United States is home to countless blind and albino animals.