This was the spot on which the weekly market was held from the Middle Ages until the XX century when it became a daily event; this meant quite an effort to set up and then take down the stalls. Thus a permanent building was put up, a metal structure decorated with ceramic work, wrought-iron and glass. The decorative tile-work and leaded windows of the building are outstanding, as are its two narrow domes. The larger of the two is crowned by a weathervane shaped like a parrot and popularly known as the "cotorra del mercat". This masterpiece of modernist architecture in Valencia was opened by King Alfonso XIII in 1928.