Puerta de Alcalá

This is the first modern triumphal arch built in Europe after the fall of the Roman Empire — or at least, that's the claim Madrilenos love to make. Commissioned by Charles III in 1778 and designed by Francesco Sabatini, the Puerta de Alcala replaced an earlier, less impressive gate that marked the eastern entrance to Madrid on the road to Alcala de Henares. Charles III wanted something monumental, something to announce that Madrid was a European capital worthy of the name.

Sabatini delivered a five-arched neoclassical gate in granite, standing 19 meters tall. Look closely and you'll notice something odd: the two facades are different. The outer face (facing away from the city center) has pilasters with Ionic capitals. The inner face has engaged columns. This asymmetry wasn't a mistake — Sabatini designed each side to respond to its surrounding architecture — but it makes the gate one of the few major monuments that looks different depending on which direction you approach it from.

The gate has witnessed some of Madrid's most dramatic moments. During the 1808 uprising against Napoleon, fighting raged around it. During the Civil War, Republican forces built defensive positions nearby. In 1986, it became the symbol of Madrid's cultural awakening when singer Ana Beltran's hit song "Puerta de Alcala" turned the monument into a pop culture icon.

Today it stands on a traffic island in the Plaza de la Independencia, the grand entrance to Retiro Park just behind it. At night, dramatically lit against the dark sky, it's one of the most photographed monuments in Madrid — a stone gateway to a city that doesn't need walls anymore but keeps its doors standing anyway.