Denver Pop Culture Con is being postponed until November as the city of Denver prepares to potentially turn the Colorado Convention Center, where the event is held, into a temporary medical facility to treat coronavirus patients. Pop Culture Classroom, the educational nonprofit that produces Denver Pop Culture Con, made the decision Monday to postpone the annual event, which typically draws more than 100,000 total attendees over a weekend of panels, celebrity autograph signings, cosplay and artist markets. Originally scheduled for July 3-5, Denver Pop Culture Con will now tentatively take place Nov.