The Top 5 Activities to do in Baltimore are:

1. National Aquarium

2. Baltimore Inner Harbor

3. Fort McHenry National Monument and Historic Shrine

4. The Walter's Art Museum

5. The American Visionary Art Museum

For a full list, please click here.

The top 5 Activities to do in Washington DC (about 1 hour and 15 minutes from the Owings Mills Marriot) are:

1. Smithsonian Museums

2. Lincoln Memorial

3. U.S. Capitol Tour

4. Washington Monument

5. National Gallery of Art

For a full list, please click here.