Puerta de Alcalá
Time Out says
A short distance along C/Alcalá from Cibeles, in the middle of another traffic junction, stands one of the most impressive monuments built for King Charles III, a massive neo-classical gate designed by his favourite Italian architect Francesco Sabatini to provide a grand entrance to the city. It was built between 1769 and 1778, using granite and stone from Colmenar. Possible to miss in daytime traffic, it is unavoidably impressive at night.
Plaza de la Independencia, 1
|Transport:||Retiro (M: L2), Banco de España (M: L2)|