If your trip to Marino is all locked in but your travel itinerary is a little on the empty side, let us give you a helping hand.Not too far from the city center, Papal Palace of Castel Gandolfo is one attraction you might like to add to your must-see list. Palazzo Colonna and Gotto D'Oro-Cantina Sociale di Marino are also nearby and worth taking the time to see.