One thing I now for sure, I've known this for a long time, it pays off to get up early in the morning to watch the sunrise on a glorious day. The view of Mount Etna at Sunrise was breath taking...

The town provides great views of Mt. Etna , Europe's largest active volcano, historical attractions like the Teatro Greco (which as it stands right now its mostly a Roman theater), it's Duomo which dates to the 13th Century, and a 10th Century courtyard in the Palazzo Corvaja, as well as some beautiful beaches, to name a few.