"fee"=>"yes","museum"=>"local","opening_hours"=>"Tu-Su 11:00-17:00","payment:debit_cards"=>"yes","payment:museumkaart"=>"yes","source:date"=>"2014-01-22"
"fee"=>"yes","museum"=>"art","opening_hours"=>"Tu-Su 11:00-17:00","payment:debit_cards"=>"yes","payment:museumkaart"=>"yes","start_date"=>"2017-05-13"
"source:date"=>"2014-01-22"