The Puerta de Alcalá is a Neo-classical gate in the Plaza de la Independencia in Madrid, Spain. It was a gate of the former Walls of Philip IV. It stands near the city center and several meters away from the main entrance to the Parque del Buen Retiro. The square is bisected by Alcalá Street, although the street does not cross through the monument, and it is the origin of the Alfonso XII, Serrano and Olózaga streets.