COUNTYButler Art Center, 344 S. Main St., presents the annual nature and wildlife show through Oct. 14. Registration is still being accepted for some fall classes, which include needle point felting, autumn scene painting, and art classes for children. Gallery hours are 10 a.m. to 4 p.m. Wednesdays, Thursdays and Fridays and noon to 4 p.m. Saturdays. Call 724-283-6922 or visit butlerartcenter.org.Maridon Museum, 322 N. McKean St., continues “The Collectors” series with Kimberly Vensel, the “Butler Butterfly Lady,” on Oct. 13. Admission is free, but reservations are required for the program. Call 724-282-0123.

REGIONRed Brick Gallery, 17 Main St., Foxburg, concludes an exhibit by Jason Floyd Lewis and Mark DeWalt on Sunday. Gallery hours are 1 to 5 p.m. Fridays, 11 a.m. to 7 p.m. Saturdays and noon to 4 p.m. Sundays. Call 724-659-0003 or visit alleghenyriverstone.org.

PITTSBURGHCarnegie Museum of Art, 4400 Forbes Ave., presents “Strength in Numbers: Photography in Groups” through Feb. 6. Museum admission is $19.95 for adults, $14.95 for senior citizens, and $11.95 for children 3 to 18. Visit www.cmoa.org.