The Rockford Art Museum boasts more than 1,500 pieces in its permanent collection, including many works by modern and contemporary American artists. The museum emphasizes local and Chicago artists, but it also exhibits works by artists from all over the United States. In particular, the museum showcases American masters from 1830 to 1940, including George Robertson, the first artist who permanently settled in Rockford. The museum also has works by Lorado Taft, one of Chicago's best-known sculptors of the early 20th century. Other highlights include photography, contemporary glass art and outsider art (mostly by self-taught African-American artists from the South). With three galleries, the museum has 17,000 square feet of exhibition space. It's one of three museums in the Riverfront Museum Park for the Arts & Sciences, along with the Discovery Center Museum and the Burpee Museum of Natural History. Admission is charged. The museum is free on Tuesdays.