The Nacional Monte de Piedad building is the national pawn shop, founded in 1775 and one of the largest second-hand shops in the world. On this site were houses that belonged to the last Aztec ruler, Moctezuma II, which Hernán Cortés took for his own after the Conquest. These houses originally stretched from modern-day Isabel la Catolica, Madero, Tacuba and Monte de Piedad streets, prompting one chronicler, Cervantes de Salazar to comment that the residence was not a palace but rather another city.