Alexandru V.
Google
Really worth the "hike" (you have some steps to climb, but it s really worth it, the views are really beautiful over the city, teatro antico and the sea), the little church is really special, carved into rock (the ceiling) and nicely decorated inside. Also, if you go round it, you have a really wonderful view of the other side of the mountain, with Etna and the surroundings (it reminded me of the old postcards, really recommend it) and a drinking fountain, so you don't have to worry about getting dehidrated.