Thinking of planning a trip to the USA with your family or friends this year? With North America's 50 big states to decide on, you'll definitely find more than one that is best for holiday vacation. The United States is filled many different attractions, national parks, beaches and famous places to visit, both in winter and summer months. Check the primer guide below. See also the Best Restaurants To Eat in Upstate New York and Family Vacation Guide to Las Vegas.