query: #All museums (including subclass of museum) in Barcelona with coordinates
  SELECT DISTINCT ?item ?name ?coord ?lat ?lon WHERE {
   ?item wdt:P131* wd:Q1492 .
   ?item wdt:P31/wdt:P279* wd:Q33506 .
   ?item wdt:P625 ?coord .
   ?item p:P625 ?coordinate .
   ?coordinate psv:P625 ?coordinate_node .
   ?coordinate_node wikibase:geoLatitude ?lat .
   ?coordinate_node wikibase:geoLongitude ?lon .
   SERVICE wikibase:label {
   bd:serviceParam wikibase:language "ca" .
   ?item rdfs:label ?name
   }
  }
  ORDER BY ASC (?name)