From Harrisburg, we drove for 3 hours to reach Corning and visit e Corning Museum of Glass.
Founded by Corning Glass Works , in 1951 this museum house over 45,000 glass objects. Some they claim are over 3,500 years old. It is non profit museum set up to tell the story of glass. Their master craftsmen present a show where they build a new object right in front of the visitors (check the video below).
You can purchase their wares and glass items imported by them. If you are planning to visit this museum please make a note that 3-4 hours in this museum are really not sufficient.