School No. 27 (Commodore John Rodgers Elementary School) is a historic elementary school located in Baltimore, Maryland, United States. It was built and opened in 1913. It is a freestanding brick building that rises 3+1⁄2–4 levels from a low granite base to its essentially flat roof and parapet. The exterior features a double stair of granite that leads up to the main entrance at the first floor of the building.[2]