hunebed d 53 of havelte, holland

amber ancient arrow axes beads bludgeon boulder boulders building burial capstone chamber construction cultural culture d53 dolmen drenthe dutch europe european field forest funerary grave green havelte heath heavy historical history holland hunebed landmark megalith megalithic menhir monument monumental netherlands old outdoor outdoors outside pieces potsherds pottery prehistoric remains rock rocks rural stacked stone stones tomb tourism touristic typical wood