Monster Mash Halloween Party, Oct 30This entry was posted in Events on October 27, 2017 Monster Mash Halloween Party All Ages Welcome! Halloween crafts, Spooky games. WHERE: Magee Rec Center, 745 Greenfield Ave, Pittsburgh, PA 15217 WHEN: Monday October 30, 2017, 6-8pm. Costume Contest at 7pm! SPONSORED BY: CitiParks