concrete bunker and wooden hollow post mill in the netherlands

agriculture almkerk altena architecture banks boezem bomb brabant building bunker concrete construction countryside dutch europe famous grass grassland group heritage heusden historic hollow land landmark landscape meadow mill molen monument nature netherlands new north old pasture polder post reeds rural scene scenic shelter sky sleeuwijk traditional travel uppel van water waterline wide wind windmill wooden world wwii zandwijkse zevenbansche