Caves of the Concejo of Navalcarnero Nature · Navalcarnero, Comarca Sur, Madrid Image of Navalcarnero, not of the place itself. A network of cellars was dug beneath the streets of the old town, keeping the wine at a constant temperature all year round; the town council has recovered several of these vaulted brick galleries and they can now be visited. Photo: Max Alexander / PromoMadrid (CC BY-SA 2.0) What to see and do in Navalcarnero