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

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

This jail which was in service for over a century is now open for curious visitors.

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

This huge, disused viaduct is now a crumbling concrete underworld of covered in years of graffiti.

Once on display alongside a giant Gumby, it’s as tall as a nine-story building when fully extended.

A local prank turned town icon.

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

This eccentric mansion museum holds a impressive collection of rare and automatic instruments.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

This restaurant offers a side of antiques, curios, and a bathroom chock full of owls.

Pennsylvania's own Roswell-style UFO mystery.

An outlandish shoe shaped house built by an eccentric millionaire.

This elaborate towering structure was once famed for its revolutionary height.

Its vintage camera collection gives a snapshot of the past as viewed through a photographic lens.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

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

This Philly landmark has a giant butterfly pavilion, three floors of insect displays, and withstood a $40,000 heist.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

The Home and murder site of the witch of Rehmeyers Hollow.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.