Just off Plaza Grande, this beautifully restored building houses the municipal library and lecture rooms and hosts temporary art exhibitions. The location is rich in history: supposedly the pre-Hispanic site of one of Atahualpa’s palaces; a Jesuit school from 1597 to 1767; an army barracks after the expulsion of the Jesuits in the late 1700s; and in 1809 the site at which royalist forces held a group of revolutionaries, before murdering them a year later.