Priceless space junk on display in front of a local Dairy Queen.

Century-old shop, specializing in Occult products.

An abandoned railroad tunnel transformed into a creepy path for hikers and cyclists.

The site of America's first commercial oil well essentially disappeared after the town went bust.

A museum commemorating the Donora Smog, which killed 20 people in October 1948 and sparked national outrage over air pollution.

Memorializing an American tragedy of massive proportions.

Penn State's giant bug collection.

"Where the ducks walk on fish."

It marks the spooky spot where the bodies of two young boys were found in the 19th century.

For decades, it has disappeared and reappeared as water levels rise and fall.

Could it have picked a better place to land?

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

Journey through a collection of over 35,000 Halloween items from all generations.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A beautiful oddities shop crammed with strange and morbid curiosities.

World's first "penitentiary," meant to be humane, drove men insane.