Since 2019, the »Treasury of Thuringia« has been celebrating International Children's Day on 20 September with the »Thuringian Palace Children's Day« and invites all children to the world of castles in Thuringia. The Thuringian State Museum Heidecksburg participates with its museums and offers very special journeys into the past for children and families at annually changing museum locations.
In 2021, the Palace Children's Day took place in Paulinzella and offered a wide range of hands-on activities in cooperation with the museum and ThüringenForst.