Museum Geißlerhaus

Set in the birthplace of glassblower and instrument maker Heinrich Geißler (1814–1879) in the Igelshieb district, this museum combines local history with the history of technology. It recalls a pioneer of vacuum technology whose gas discharge tubes advanced physics. The house, built in the mid-18th century for a glassblowing family in the style typical of the Thuringian slate uplands, is part of the appeal.