In Recinto amurallado, as almost everywhere in Madrid, the churches are the oldest buildings still in daily use — and the cheapest museums in town.
This guide lists every registered church, chapel, basilica, sanctuary and monastery in and around Recinto amurallado: what to look for inside, the hours the parish has actually filed, whether there is a ticket, how to dress, and where a guided visit genuinely adds something. Landmarks come first, so a short stop still takes you to the one building that matters.
Nothing here is invented. Records, hours and heritage status come from open map data maintained by local contributors, descriptions from Wikipedia with the source linked, and photographs from Wikimedia Commons for that exact building. When a church has published no timetable, we say so rather than printing a plausible-looking one.