It’s easy to be lost in Venice, a city of incomparable beauty and romance — a place where you’re just one of the millions of tourists who visit each year. Yes, it’s easy to be lost in Venice. But I mean really lost. Like you don’t know where your traveling companion disappeared to when you hopped on the vaporetti. You don’t have the address of the Airbnb where you stayed, nor the key? And you don’t have a phone with cell service? It wasn’t part of my plan.