“Traditionally, on Whit Monday, around 650 historic mills across Germany open their doors. The German Society for Mill Studies and Preservation (DGM) and its state and regional associations invite the public to German Mill Day. On this special day, the country’s numerous windmills, watermills, steam mills, and motor-powered mills set their sails and waterwheels in motion. Mill operators set the grinding mechanisms in motion and offer those interested in mills a deeper insight into the cultural heritage of mills and the ancient craft of milling. The cultural offerings on German Mill Day are extensive and diverse. Guests are treated to guided tours and small celebrations, and they can enjoy the day together with music and culinary delights. The idea for German Mill Day was conceived more than 30 years ago. In the early 1990s, regional mill events enjoyed great popularity in Germany. …” (translated with the free version of www.deepl.com/translator)
See also:
https://www.deutsche-muehlen.de/1