[{SlideShowNav}] !!!Alcala Gate [{Image src='630sp.jpg' width='650' height='433' alt='Alcala Gate' class='image_left' popup='false'}] [{SET customtitle='Alcala Gate'}] \\ The Puerta de Alcala (Alcala Gate) [{GoogleMap location='Puerta de Alcalá, Plaza de la Independencia, Madrid, Spanien' zoom='15'}] monument in the Plaza de la Independencia (Independence Square) in Madrid. Inaugurated by King Carlos III in 1778, it originally functioned as an enormous gate in the citys wall.