The Baltimore Aquarium - 501 East Pratt Street (The aquarium has special discounted passes for Fridays after 5:00, for information click here)
The Inner Harbor - Downtown Baltimore
Baseball - 351 West Camden Street
Latrobe Basilica - 409 Cathedral Street (across the street from An Die Musik)
American Visionary Art Museum - 800 Key Highway (American folk, primitive, and visionary art)
The Walters Art Museum - 600 N. Charles Street (special exhibit on "The Secrets of Archimedes")