caps International relations Locarno is twinned with: See also Locarno Treaties References External links The city of Locarno official website Official Website of Ascona-Locarno Tourism The old town of Locarno Photo tour of the Astrovia Locarno Castello Visconteo information Cities in Switzerland Free imperial cities Cultural property of national significance in Ticino Populated places on Lake Maggiore Lakeside resorts in Switzerland