All Weekend Long:
- Zooboo, Maryland Zoo, check website for details
- The Price is Right Live, Warner Theatre, 7:30 p.m.
- Penn Station Fall Festival, Penn Station, 3 to 7 p.m.
- Spooky Science, Maryland Science Center, noon to 4 p.m.
- Great Halloween Lantern Parade, Creative Alliance, 3 p.m.
- Westminster Zombie Walk, Downtown Westminster, 3 p.m.
- Blood on the Dance Floor, Baltimore Soundstage, 6 p.m.