Smithsonian magazine is hosting a nationwide celebration of museums on Saturday, September 22! The organization is partnering with more than 1,250 museums and cultural institutions around the U.S. to offer free general admission.

Just go to the Museum Day site, select your museum of choice, and provide your name and email address. Your ticket will arrive in your email inbox. According to the website, a ticket is good for free general admission for two people on Museum Day.