Here is an itinerary I am considering for a 13 day cruise on the NCL Gem for next August.
Venice (Trieste),Italy
Venice,Italy
Venice (Ravenna),Italy
Dubrovnik,Croatia
Kotor,Montenegro
Corfu,Greece
Santorini,Greece
Athens (Piraeus),Greece
Mykonos,Greece
Zakynthos,Greece
Catania,Italy
Naples,Italy
Florence/Pisa (Livorno),Italy
Rome (Civitavecchia),Italy