ancient buildings at the brigach river in donaueschingen, germany

town waterway river city canal landmark tourism building estate architecture wall house downtown ancient buildings brigach donaueschingen germany old source danube fürstenberg ancient architecture baden württemberg black forest bridge building buildings city cityscape culture danube donau donaueschingen duna europe european famous german germany historic historical history landmark landscape old river scenery scenic schwarzwald sightseeing source stream style tourism town travel urban vacation view visit water