"board_type"=>"history","information"=>"board"
"board_type"=>"history","information"=>"board","name:de"=>"Monument der Gefallenen","wikimedia_commons"=>"File:Monument_der_Gevallenen_Infotafel.jpg"
"hiking"=>"yes","information"=>"map","map_size"=>"region","map_type"=>"topo"