Every couple I talk to who is thinking about a river cruise eventually asks me some version of the same question: which line is actually the most romantic? I sailed Viking through China last year, visited the Forbidden Palace, walked the Great Wall, and stood face to face with the Terracotta Warriors. I also spent time aboard the MS Joy at Tauck Academy, going through daily seminars to earn my Certified Tauck Specialist designation. So when couples ask me which is the best ri