If your trip to Caltanissetta is all locked in but your travel itinerary is a little on the empty side, let us give you a helping hand.Close to the city center, Castello di Pietrarossa is one spot you might like to consider putting on your to-do list. If you still have some room on your itinerary, Church of St. Agatha and Fontana del Tritone will keep you entertained as well.