Aeropuerto de Madrid-Cuatro Vientos is located at Ctra. Barrio de la Fortuna. It is a airport founded by the air force in 1911, and is one of the two oldest airports in the country. It has since become a civilian airport, with military and police sections. The airport is the base for the Policia Nacional to use for things like road traffic and crowd monitoring. The facilities also include the Museo del Aire. Lucía Sánchez Saornil wrote the poem, Cuatro Vientos, drawing on the airport for inspiration. The poem was published in a 1919 edition of the magazine Cervantes.