If your trip to Silver Spring is all booked but your travel itinerary is a little on the empty side, let us give you a helping hand.If your friends ask why you're coming here, just show them some pictures of University of Maryland, College Park and Maryland Stadium. These noteworthy attractions will make sure you have a memorable trip.Stop by AFI Silver Theatre. It's one sight you'll find on most travelers' must-do lists. Rock Creek Park and Baltimore & Ohio Railroad Station are also a stone's throw away and worth taking the time to see.