This is an impressive church, perhaps the largest courtyard in the Old Town. It is not far from Zocolo and St. Domingo, but on the east-west axis, most city tourists seem to be heading north to south. Outside the church, you will get some extra hospitality. There is a small museum to see. After climbing a little bit, you can also see a good view from there. Go up the stairs of the square, cross the street to the open square and park, offering a series of simple street food. If you are energetic, go up from there until you want to see a very nice view. Everything went downhill from there!