Overshadowed by quilts, the artistry of these patterned textiles went underappreciated for too long.

This historic furnace was once used to produce cannonballs during the Civil War.

A museum and research center dedicated to preserving the history of Rolls-Royce and Bentley motorcars.

A pyramid commemorates the birthplace of James Buchanan, the 15th president of the United States

Descendants of this colonial Pennsylvania family still travel from far and wide to visit the 300-year-old home of their Quaker ancestors.

Dozens upon dozens of boulders engraved with scripture tell the story of one man's troubled life.

Where the oil industry began.

A preserved 18th century homestead in Western Pennsylvania marks the spot where the Whiskey Rebellion began.

"Where the ducks walk on fish."

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

The site of the little-known Pennsylvania battle that sparked the Seven Years' War.

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

An occult-y, historic hotel with the World's Largest Ouija board on the roof.

A living maritime paradox still floats in the same lake where it was built and resurrected... or was it?

Pittsburgh's literal underground railroad.

An otherwise quiet campground becomes a bustling medieval town for two weeks every year.

This icon of the Atomic Age now lays dormant.

This public park was the site of the largest civilian disaster of the Civil War.

The Cold War-era "underground Pentagon" is a sprawling subterranean hideaway for the Defense Department.

A small museum along the Susquehanna River is home to a rich collection of Native American artifacts.

This picturesque stream was up until recently the site of a ten story mountain of slag and sewage.

A miniature golf course crafted inside the world's largest simulated cave.

A unique workspace where offices reside on pirate ships and inside gingerbread houses.

A retired firefighter created this contraption so he and his family wouldn't die if accidentally buried alive.