a dolmen or hunebed in drenthe in the netherlands

tree rock garden ruins grass plant yard flower sculpture soil landscape lawn backyard wildlife wall monument park dolmen hunebed type single-chamber megalithic tomb vertical megaliths supporting large flat horizontal capstone netherlands wild beautiful archaeological natural background age ancient archeology boulder boulders bright burial bury culture dead drenthe dutch eternity europe giant grave gravestone graveyard green havelte historic historical history holland landmark long megalith menhir nature neolithic old outdoor outdoors prehistoric prehistory sky stone stones sun travel