view of wildenstein castle in the upper danube valley, upper danube nature park, swabian alb, baden-wuerttemberg, germany

alb autumn baden castle coloration colors danube destination fall foliage forest germany green hill hills hillscape hilly idyllic landscape leaf lookout mountain nature nobody outdoors outlook overlook park reserve rock rocky rolling scene scenery scenic southern spur swabian tranquil travel upper valley view viewpoint wildenstein wood woodland wuerttemberg