Where would you want to go on your next cruise?

I am interested in going through Scandanavia and up to St. Petersburg, and through the South Pacific, and around the UK via ship, none of which I have done yet. I enjoy the Mediterranean, and the next cruise I have booked is a pair of back-to-back cruises on the Costa Fortuna from Ft. Lauderdale, through the Caribbean, across the Atlantic to Madiera and Malaga and Savona, and then from Savona around Italy, ending in Venice! We're staying in Venice for a few days before we fly home, and will be gone a total of about 26 to 28 days. Costa is an excellent cruise line, Italian, and the most popular in Europe. My hands-down favorite line is Cunard.