"denomination"=>"roman_catholic","religion"=>"christian"
"denomination"=>"catholic","place_of_worship"=>"lourdes_grotto","religion"=>"christian"
"denomination"=>"catholic","opening_hours"=>"24/7","religion"=>"christian"
"religion"=>"christian","url"=>"http://www.kerkgebouwen-in-limburg.nl/kerken/schin-op-geul/kluis-op-de-schaesberg","wikidata"=>"Q2840395","wikimedia_commons"=>"Category:Kluis op de Schaelsberg"
"disused"=>"yes","place_of_worship"=>"lourdes_grotto","ref"=>"F840","religion"=>"christian","wikidata"=>"Q29510116","wikimedia_commons"=>"Category:Lourdesgrot, Valkenburg aan de Geul"
"denomination"=>"roman_catholic","religion"=>"christian"
"denomination"=>"roman_catholic","religion"=>"christian"
"denomination"=>"roman_catholic","place_of_worship"=>"lourdes_grotto","religion"=>"christian"
"denomination"=>"roman_catholic","description"=>"Rijksmonument since 1967 and build in 1829.","religion"=>"christian","wikidata"=>"Q3359585","wikimedia_commons"=>"Category:Calvariekapel (Houthem)"