"archaeological_site"=>"megalith","megalith_type"=>"dolmen","ref"=>"D18","wikidata"=>"Q2168440"
"archaeological_site"=>"megalith","megalith_type"=>"dolmen","ref"=>"D17","wikidata"=>"Q2520069"
"archaeological_site"=>"megalith","heritage"=>"2","megalith_type"=>"dolmen","ref"=>"D16","wikidata"=>"Q2171409"