"The classic bucket list of exotic itineraries includes the Galapagos, Antarctica, North America’s Northwest Passage and the Arctic," Brown says. Aside from these dreamy routes, "cruise lines are. It has been described in the press as “the world’s most dangerous cruise. Angeles–based line Crystal Cruises, embarked from Anchorage, Alaska, on Tuesday. Its 32-day itinerary will take it to New Y. And even some traditional cruise lines offer untraditional twists and…