The Glass Museum (Glasmuseum) in Wertheim exists to tell the history of the glass making industry in the town. Glass has been produced in Wertheim since medieval times, including the production of jewellery, and fibre optics in the 20th century. In the museum, you can learn of this whole history, and see interesting demonstrations of glass being made and moulded into shape. There is a small entrance fee to the museum, which is open most days and worth a visit.