If your trip to Bethesda is all organized but your travel itinerary is a little on the empty side, let us give you a helping hand.Smithsonian's National Zoo and Georgetown University are cool attractions that everybody should make time to stop by. Map out a route and enjoy experiencing each one.Stop by National Institute of Health Campus. It's one attraction you'll usually find on many visitors' to-do lists. Rock Creek Park and Glen Echo Park are also a stone's throw away and worth taking the time to see.