Pennsylvania's own Roswell-style UFO mystery.

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

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

There aren't too many operational funiculars around, but Pittsburgh has two!

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

The first American department store, and home to the largest operating musical instrument in the world.

A park full of outsider art, created by college students studying outsider art.

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

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

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

A terrific purveyor of natural history objects and curios.