watch tower on the old post office building timelapse hyperlapse. located in the puerta del sol. madrid, spain

sol architecture madrid spain puerta europa timelapse europe hyperlapse travel building plaza grande nacional cuatro castilla center del square landmark famous city espana historic monument street spanish administration central community government interior ministry casa iberia new office palacio calle stone cityscape urban equestrian classic de carlos architectural old fountain sunset culture statue history cristal us quijote tourists post summer place white edificio