The railway colony Historical milestone · Torrelodones, Área Metropolitana, Madrid Image of Torrelodones, not of the place itself. The opening in 1864 of the halt on the Northern line attracted Madrid families who built hotels and villas a kilometer and a half from the village. That summer settlement, the Colonia, ended up being the municipality's urban center. 1864 Photo: Torrelodones (CC BY-SA 4.0) What to see and do in Torrelodones