Sicily or SFO trip?

As you all know the world is filled with exciting places and my grandfather is also one of them who loves to explore exciting places. According to him he had spent a good time in Sicily and the beauty of this place had his heart. You know what this time he is insisting I go there instead of being part of tours from sfo and can't take a decision on what to do. Do tell me where should I go?

Both places are untouched to me and Sicily's name is new to me. I heard about it the first time through your post. That's why I cannot say which place will remain best to go on a tour. Anyway, When you visit these places don't forget to share your experience with us. Waiting for your response...