Featuring the largest CinemaScope screen in Pennsylvania, this drive-in has entertained moviegoers for more than half a century.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

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

The abandoned coal loading dock is a canvas for unsanctioned art.

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

A local prank turned town icon.

It would take 35 firetrucks to fill this enormous glacial pothole.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

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

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