birch birch forest birch tree forest nature protective area recreation area spring spring forest tree wood woodland backgrounds Bark Tree natural pattern outdoors house white administration birches building educate education junior primary school windows birchs cottage forests trees village autumn berlin birch trees countryside environment germany grunewald land landscape natural outland path perspective scene scenery sight sketch tall view walk wildwood woods Dirt Morning pine pines road spells sunny birch-tree bush Harz high mountain plant precipice rock stone summer beech beeches cone dark leaf leaves oak oaks sunrays footpath sunlight way