Буэн-Ретиро
The Salón de Reinos (translated as "Hall of the Kingdoms" or "Hall of Realms") or salón grande ("great hall") is a 17th-century building in Madrid, originally a wing of the Buen Retiro Palace. The Salón de Reinos and the Casón del Buen Retiro are the only survivors of the original grand scheme of the palace.