The Keltenmuseum displays artifacts and narrative describing the early Hallstatt and La Tene Celtic cultures as well as the development of salt mining in the region through the Middle Ages and Renaissance.[4] The Silent Night Museum features information relating to the composing of one of the best-known Christmas songs of the 19th century. It documents the life and times of composer Franz Xaver Gruber. The museum houses the guitar originally used by lyricist Joseph Mohr and several signed copies of the sheet music.[5]