If your trip to Concord is all organized but your travel itinerary is a bit on the empty side, we can give you a helping hand.Close to the city center, Capitol Center for the Arts is one spot you might like to consider adding to your to-do list. If you still have space on your itinerary, Christa McAuliffe Planetarium and Susan N. McLane Audubon Center and Silk Farm Wildlife Sanctuary will keep you occupied as well.