From the Open-Air Museum entrance, a 1km walk uphill along Müze Caddesi brings you to the signposted trail leading down to the little-visited Aynalı Kilise. The main chapel is adorned only with simple red ochre geometric decorations, but the real highlight here is shimmying through the network of narrow tunnels interconnecting a series of rooms within the rock face. Ahmet, the on-site guardian, provides torches for visitors.