If your trip to Johnston is all sorted out but your itinerary is looking a little empty, we can give you a helping hand.Discover the best that this place has to offer by adding Rhode Island State Capitol Building and Kennedy Plaza to your must-see list. If you have an extra day up your sleeve, have a look at Roger Williams Park Zoo and Brown University as well.There's nothing better than discovering new places. While you're staying here, Twin River Casino and Providence Place Mall ought to be among them. One more sight to keep in mind is Providence Performing Arts Center.