This convent shouldn’t be missed, even if you’ve overdosed on colonial edifices. Occupying a whole block and guarded by imposing high walls, it is one of the most fascinating religious buildings in Peru. Nor is it just a religious building – the 20,000-sq-meter complex is almost a citadel within the city. It was founded in 1580 by a rich widow, doña María de Guzmán. Enter from the southeast corner.