The city of Bühl is part of the district of Rastatt in the southwestern state of Baden-Württemberg, Germany. It has a history reaching back to the t…The city of Bühl is part of the district of Rastatt in the southwestern state of Baden-Württemberg, Germany. It has a history reaching back to the twelfth century and was formerly an agricultural town, especially famous for its plums. Bühl has a population of about 29,000, and is in the region between the Rhine Valley and the Black Forest.