Unique Itinerary: Asia

 Silver Shadow Voyage 3130: Asia with a Twist.Illustration courtesy of Silversea CruisesWhen we look for unique itineraries, we like to focus on voyages that offer an interesting mix of ports to destinations that are either off the beaten path or simply different from other competing cruises.  Throw in a great ship, and you've got a recipe for a stellar cruise vacation.One of the hottest "new"