They say those who travel well together, stay together. So if travel is the ultimate test of a relationship, how can you rig the conditions to score well? You want a stress-free environment, yes, but then what do you talk about at dinner? Increase the stakes with too packed an itinerary, and you’re bound to have a public quarrel. Lucky for you and your sweetheart, the editors at Condé Nast Traveler have compiled a list of places around the world that strike that perfect balance, whether…

