Question: The daily newspaper, laRegioneTicino is based in a city famous for its three castles that have been UNESCO World Heritage Sites since what year?
Sentence (from "LaRegione Ticino"): The laRegioneTicino (English: "The Ticino Region") is a Swiss Italian-language daily newspaper, based in Bellinzona, Ticino with regional divisions in Locarno, Lugano and Chiasso.
Relevant evidence: Yes