1)  Antietam National Battlefield
2)  National Aquarium
3)  Assateague Island National Seashore
4)  Chesapeake and Ohio Canal National Historical Park
5)  Ocean City Boardwalk
6)  Fort McHenry National Monument and Historic Shrine
7)  Assateague State Park
8)  Colonial Annapolis Historic District
9)  Baltimore Orioles
10)  Six Flags America