This theatre, despite a fairly recent renovation, shows its wear. And, the 30-minute guided tour for 8 euros is a bit much. But, if you are able to visit while an opera is in rehearsal it will be well worth it. The acoustics in this classic opera house are absolutely incredible. We were able to sit in a balcony box seat for nearly the entire 30 minutes watching the rehearsal of Wagner's Valkyrie, complete with orchestra, and it truly was a highlight of our trip to Palermo.