historic water mill in the black forest, ottenhoefen, baden-wuerttemberg, germany

black forest mill water historic baden wuerttemberg germany ottenhoefen countryside stream traditional historical wheel schwarzwald old wooden house watermill waterwheel rural creek tree trees power renewable energy alternative rainbauernmuehle rainbauernmuhle famous south southern german landscape nature northern wurttemberg low mountain range central uplands outdoors outdoor idyllic tranquility tranquil travel destinations tourism day daytime