query: #defaultView:Map
  SELECT ?item ?location  WHERE {
    ?item wdt:P2788 ?dummy0 .
    ?item wdt:P625 ?location .
    OPTIONAL { ?item wdt:P18 ?dummy1 }
    FILTER(!bound(?dummy1))
    SERVICE wikibase:label { bd:serviceParam wikibase:language "cs" } .
  }