en-US Event Tickets http://www.ticketseating.com/alternative-events--in-philadelphia-pa--at-harrison-auditorium-at-the-penn-museum-tickets-philadelphia-pa/ To buy Alternative tickets, choose an event below. Buy cheap Grouper tickets for Thursday September 17, 2026 at 8:00 PM at Harrison Auditorium at The Penn Museum in Philadelphia, PA. 8162080