1957 - Turin
It is twinned with Campo Grande (Brazil), Chambéry and Lille (France), Cologne (Germany), Cordoba (Argentina), Detroit and Salt Lake City (United States), Esch-sur-Alzette (Luxembourg), Gaza (Palestine), Glasgow (United Kingdom), Liège (Belgium), Nagoya (Japan), Quetzaltenango (Guatemala), Rotterdam (Netherlands) and Shenyang (China), but today maintains a consolidated network of bilateral relations and partnerships and co-operation agreements with over 40 different towns in 30 different countries.