query: embed.html##Night in Spain
   
  #defaultView:Map
  SELECT DISTINCT ?item ?itemLabel ?coord  ?noctu
  WHERE
  {
    ?item wdt:P17 wd:Q29 . 
    ?item wdt:P3451 ?noctu .   
   OPTIONAL {	?item wdt:P625 ?coord } .
   OPTIONAL { ?item wdt:P18 ?picture } .
  
    SERVICE wikibase:label { bd:serviceParam wikibase:language "es,en,ca,gl,eu,fr,de,it" . }
  }