On Easter Sunday, the Italian port of Savona saw 4 port calls from Costa Ships. Savona is sort of like a Red Hook, NY or Cape Liberty, NJ in that one line built it up and pretty much only Costa use it as a major turnaround port.
From r to l: Costa Concordia, Costa Luminosa, Costa Deliziosa and Costa Victoria. The Costa Favolosa was there at one point, but left for seatrials by the time the photo was taken.

photo:pazzoperilmare.com