The ghostly remains of what was once the world's richest copper mine.

The final remnant of the Arkansas zinc industry is this historically protected ghost town.

A small flooded ghost town with a few scattered structures remaining.

The ghost town that ended up on Ebay.

Odd outsider art installations surround a Gold Rush-era ghost town.

A hotel and restaurant serving as the mecca of kitsch.

What once housed a private club catering to Comstock Lode elite is now considered one of the West’s most haunted spaces.

Take a break from all the boring business of death at this funeral home mini-golf course.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

An abandoned incline railway site is now a green space with six acres of trails connecting hilltop neighborhoods.

The collection of a paranormal investigator who traveled the country collecting haunted items and stories.

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

A curious building honoring past and current members of a historic musical comedy troupe.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

An almost life-sized elephant named Ms. Ellie greets visitors at this jumbo-themed museum.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

A decaying garage hidden amid the dense forest is all that remains of a once-prosperous dairy farm.

This ruined quarry once produced the distinctive red sandstone used for construction projects in Washington, D.C.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

Town full of spiritualists, some of whom are mediums, is still in full swing after 130 years.

A glimpse into early 19th-century education.

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

Hidden in the hills of Western Pennsylvania lies one of the best-kept ghost towns in America that you can legally visit.

Locals call this magical moss-covered walkway the "Emerald Path."