Black lava stone from Etna, combined with largely Baroque architecture, give Catania's historic center a very distinctive feel. Look out for elephants! Not real ones, of course, but symbols and carvings abound; the main one to see is "U Liotru," guarding the city from his viewpoint on top of the fountain in the middle of the cathedral square. After Catania's destruction by lava and earthquake at the end of the 17th century, the city was rebuilt and U Liotru placed outside
the cathedral as a kind of talisman. Also of note in the center are Castello Ursino, which is now a museum, the Greco-Roman theater next to Piazza Duomo, and the Roman amphitheater in Piazza Stesicoro.