Get 2 FREE Museum Day Admission Tickets from Smithsonian Magazine on September 26th. It’s Museum Day on September 26th meaning free admission to participating museums around the nation. Each ticket is valid for 2 FREE admissions! To receive your free Museum Day Live! ticket for two people only, please register for an account. Once registered, you can request a ticket to one participating venue. The ticket will be available to download immediately up to the date of the event. You must print your ticket and present it to receive your free admission or have it accessible on your mobile device (pending museum participation).