This museum holds a very important painting collection based in the Sevillian School, specially Baroque period, with works by masters as Murillo, Zurbaran, Valdes Leal...It's the most important Spanish art gallery after the Prado Museum in Madrid. The museum's building is truly interesting too. It was a part of the Convent of La Merced Calzada (17th - 18th centuries). The principal front is a subsequent contrution because the convent used to occupy the current museum square. The front-door (18th century) comes from the church. It was moved from the narrow Bailen street.