2 FREE Museum Day Admission Tickets on September 18th Posted On August 24, 2021 Get 2 FREE Museum Day Admission Tickets from Smithsonian Magazine on September 18. It’s Museum Day on September 18 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). STEP 1: Click here to find participating museums and register STEP 2: Download your tickets STEP 3: Head to the museum anytime throughout the day for your art adventure!