If we did a 100% stats-driven list of the 10 largest hotels in the world, seven would be in Vegas. In fact, out of the biggest 25, a whopping 15 are in that patch of Nevada desert. As such, we've put together a far-more-interesting roundup of the most massive accommodation options in 10 different countries. Kinda -- Macau's a bit of an exception as it's part of China, but as it's mad Portuguese, and a "Special Administrative Region", we're allowing it. Peep these picks!