When visiting Baltimore, do make a point to take a tour of the city via water taxi. The cost for an all-day pass is really cheap, and it gives you a scenic way to get to Ft. McHenry, the Visionary Arts Museum, Canton, and around the Inner Harbor. The cost is less than $10 per person, and transportation almost always includes a narrated tour of sites as your boat floats by. Boat size varies according to where you're traveling, and I'm pretty sure they have buses transporting visitors from the Visionary Art Museum to Ft. McHenry. It's a great and affordable way to tour the city.