The Puerta de Alcalá ("Alcalá Gate") is a Neo-classical monument in the Plaza de la Independencia ("Independence Square") in Madrid, Spain. 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 itself doesn't cross through the monument, and it is the origin of the Alfonso XII, Serrano and Olózaga streets.