This attraction is not listed in any of the touristic maps of Palermo and yet it was our favorite one. We found it here on TripAdvisor and were very pleased with the visit. The collection of tiles is one of the largest in Europe, and it is indeed impressive (even if you're not specially interested in tiles...). Take the guided tour, as the explanations are indispensable, and the guides extremely qualified, enthusiastic and nice. The private home that hosts the collection is also delightful, and the whole visit is a trip to another era. Worth every second of our time!