1 Medieval Times Maryland Castle Medieval Times Maryland Castle (675)
2 Merkle Wildlife Sanctuary Merkle Wildlife Sanctuary (620)
3 Darnall's Chance House Museum Darnall's Chance House Museum (617)
4 Bowie Train Station Museum Bowie Train Station Museum (628)
5 Prince Georges Stadium Prince Georges Stadium (635)
6 National Capital Radio and Television Museum National Capital Radio and Television Museum (608)
7 Goddard Space Flight Center Goddard Space Flight Center (594)
8 NASA Visitor Center NASA Visitor Center (614)
9 Greenbelt Museum Greenbelt Museum (616)
10 Old Maryland Farm Old Maryland Farm (668)
11 Carroll County Farm Museum Carroll County Farm Museum (632)
12 B&O Railroad Station Museum B&O Railroad Station Museum (645)
13 Phillips Wharf Environmental Center Phillips Wharf Environmental Center (650)
14 Patapsco Valley State Park Patapsco Valley State Park (675)
15 Clark's Elioak Farm Clark's Elioak Farm (685)
16 Howard County Welcome Center Howard County Welcome Center (648)
17 Jolly Roger Amusement Park Jolly Roger Amusement Park (608)
18 Frontier Town Frontier Town (589)
19 Roland E. Powell Convention Center Roland E. Powell Convention Center (653)
20 Ocean City Life-Saving Station Museum Ocean City Life-Saving Station Museum (611)
21 Trimper's Rides and Amusement Park Trimper's Rides and Amusement Park (642)
22 Boardwalk Boardwalk (657)
23 U.S. Army Ordinance Museum U.S. Army Ordinance Museum (650)
24 National Museum of Dentistry National Museum of Dentistry (619)
25 Mount Vernon Museum of Incandescent Lighting Mount Vernon Museum of Incandescent Lighting (698)