The famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.

A diorama of the Civil War, fought by cats.

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

The first American axe throwing club.

Despite being stolen multiple times, this civic electrician's street corner Snoopy won't be stopped.

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

Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

A larger-than-life statue of America's favorite sundae marks the place it was invented.

This shrine to McDonalds' most iconic sandwich holds a 14-foot tall burger.

Mysterious rocks that ring musically when struck.

A layered tribute to the work of mosaicist Isaiah Zagar.

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

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

Human skulls and a stuffed goat made into a rocking chair can be found at this strange little store.

A Frankenstein blend of science and art allows one tree to produce 40 different types of stone fruit.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

More than five miles of underground passageways.