If your trip to St. Louis, MO Airport (CPS-St. Louis Downtown) is all locked in but your travel itinerary is looking a bit empty, we can give you a helping hand.Gateway Arch is within an easy drive of St. Louis, MO Airport (CPS-St. Louis Downtown). Right after you arrive, you'll be able to pick up the keys to your rental car, throw your baggage in the back and head off. You'll be capturing spectacular shots of this unmissable attraction in no time.Even if you're only stopping over here, you should still head on out and see the sights. After all, it won't take very long to reach Anheuser-Busch Brewery.Travelers from all over the place come to see Fox Theater, so make it one of your first stops after you hit the runway. Also worth checking out are Tower Grove Park and World Aquarium.