If your trip to St. Louis is all organized but your travel itinerary is looking a bit empty, let us give you a helping hand.A look at a postcard stand will show that a visit to St. Louis wouldn't be complete without visiting Busch Stadium. Considered the most well-known sight in the city, you might want to schedule more time here than just a quick stop.You'll have to rise early if you want to check out all the great attractions that this place has to offer. City Museum and Dome at America's Center are no-brainers. Anheuser-Busch Brewery and Cathedral Basilica of St. Louis shouldn't be forgotten either.Plan a stop at Fox Theater. It's one attraction you'll find on travelers' must-do lists. If you still have some room on that travel itinerary, Tower Grove Park and World Aquarium will keep you occupied too.