caldera lake in autumn, seen from an old town street

tree house flower green wall autumn plant estate garden home waterway village building leaf cottage neighbourhood town yard calm gloomy caldera lake ulmen small eifel called ulmener maar youngest volcanic lakes area old castle ruin located stretches hill autobahn separates rural vulkaneifel extreme west germany ruins half-timbered medieval architecture lake caldera volcano volcano vulcanic nature tree forest rural remote natural calm quiet leisure idyllic eifel landscape maar ulmen young