A journey through the main arteries of Madrid, paseo de la Castellana and the M30 with their emblematic buildings: Cibeles, Puerta de Alcala;, Neptuno, the Prado Museum and the modern Calle 30, passing through the Puerta de Europa and the future city, being developed in Madrid, which is already under construction with the four towers. A comparison between Madrid at the time of Carlos III and the new, twentieth century Madrid