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

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

Once the most painted on object in the world, this short campus fence is well on its way to being so again.

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

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

The last street in Pittsburgh that's paved with wood.

North America’s largest collection of horological devices and home to a colossal clock with a dizzying array of features.

Within this beautiful Pittsburgh cemetery, a unique headstone bears witness to one man's eternal love for Jaws.

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

A daily replay of the experiment that proved the rotation of the Earth.

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

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

These disused steel furnaces are now haunting ruins that may one day be a national park.

An outlandish shoe shaped house built by an eccentric millionaire.

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

This park contains a number of standing stones meant to heal and inspire.

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

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

Dr Barnes' $25 billion private collection of art and arboretum.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.