 Examples include, Buenavista Palace (the Army General Headquarters), which was designed by the architect Juan Pedro de Arnal in 1776 for the Dukes of Alba and the Palacio del Marqués de Linares (Palace of Linares), which is currently the Casa de América.One of the distinguishing elements of the surroundings was the installation of the Fountain of Cybele in 1794, designed by Ventura Rodríguez.The Plaza de Cibeles was originally called Plaza de Madrid, which was renamed as the Plaza de Castelar.