New town of Tres Cantos Curiosity · Tres Cantos, Área Metropolitana, Madrid Born in 1976 as one of the country's first Urgent Urban Development Schemes, it was planned following the model of the English new towns and was not separated from Colmenar Viejo until 1991, when it became a municipality in its own right. Photo: bass_at_home (CC BY-SA 3.0) What to see and do in Tres Cantos