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

In which a local geological marvel becomes a quaint roadside attraction.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

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

"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.

An Olympic hero stripped of his medals is buried in a town he never visited, which took his name after his death.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

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

This giant disembodied horse head seems to balance impossibly on its nose.

This collection honors the iconic, and proudly American lighter that just won't quit.

An Irish Memorial commemorating those who perished due to potato blight.

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

A quirky collection of outsider art made from automobile parts.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

Contrary to what one might expect, ice forms inside this small cavern during the summer and melts during the winter.

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

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

A layered tribute to the work of mosaicist Isaiah Zagar.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

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

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

Alexander Hamilton’s creation caused quite a bit of controversy.

A historic covered bridge is but one example of an oddly prevalent American urban legend.