"ref:anwb"=>"60217/001","board_type"=>"history","information"=>"board"
"ref:anwb"=>"60236/001","board_type"=>"history","information"=>"board"
"name:nl"=>"Informatiepunt van Grotten Noord en Fort Sint Pieter"
"information"=>"board","mapillary"=>"https://www.mapillary.com/map/im/ZZrQOJW9KVV8yrvUdpER4c"