314 Forest Avenue, Portland | oshermaps.org | (207) 780-4850 FREE AND OPEN TO THE PUBLIC HOURS: Tue, Wed, Fri: 10:00 AM – 4:00 PM Thu: 10:00 AM – 8:00 PM Sat: 10:00 AM – 2:00 PM Experience the intersection of art and cartography at the Osher Map Library and Museum CURRENT EXHIBITION: Art of the Spheres: Picturing the Cosmos Since 1600 | Open until October 6, 2018 126 p o r t l a n d monthly maga ine