"fee"=>"no"
"fee"=>"yes","opening_hours"=>"Tu-Su 13:00-16:30","source:addr"=>"BAG","source:addr:date"=>"2014-03-24","wikidata"=>"Q17457800","wikimedia_commons"=>"Category:Museum Het Land van Valkenburg"
"fee"=>"yes","wikidata"=>"Q2409236","wikimedia_commons"=>"Category:Roman catacombs (Valkenburg)"