Calle de Alcalá
Calle de Alcalá is the longest street in Madrid. It starts at the Puerta del Sol and goes on for 10,5 km, to the northeastern outskirts of the city.
It is also one of the oldest streets in the city. It was the old road which led to the city of Alcalá de Henares (from which it takes the name) and continued to Aragón; today, this route is covered by the A-2 motorway. Along this street it is possible to find landmarks such as Plaza de Cibeles, Puerta de Alcalá, the Spanish Ministry of Education, the Instituto Cervantes HQ building, the Bank of Spain building, Parque del Retiro and Plaza de Toros de Las Ventas.