Montgomery County October 22, 2021 1:20 pm Monster-Mania Con Invades Montgomery County Looking for a weekend monster mash? Check out Monster-Mania Con in at the Greater Philadelphia Expo Center in Oaks, Montgomery County. US & World Videos 4:51 Philly native talks new book and working for the Obama White House 3:05 Actress Rachel McAdams makes Broadway debut 4:15 Leslie Odom Jr. talks latest album, return to Broadway and Philly roots 3:48 Paralympic guide runner Jerome Avery talks Penn Relays 3:32 Penn's Isabella Whittaker talks competing in 2024 Penn Relays