The Associated Artists of Butler County group hosts a Photography Show in the Underground Gallery at The Art Center, 344 S. Main St., through May 4. Other events include the Slippery Rock University art seminar show “Look” and the SRU Bachelor of Fine Arts Senior Exhibit. The Art Center is open from noon to 6 p.m. Wednesdays, Thursdays and Saturdays and noon to 9 p.m. Fridays. Admission is free. Call 724-283-6922 or visit www.aabcArtCenter.com.

Bottlebrush: A Gallery for the Arts, 539 Main St., Harmony, is the site of the Zelienople Art Club's Fine Art Show through April 29. Gallery hours are 11 a.m. to 7 p.m. Wednesdays, Thursdays and Fridays, 10 a.m. to 5 p.m. Saturdays, and noon to 5 p.m. Sundays. Admission is free. Call 724-452-0539 or visit www.bottlebrushgallery.com.

<B>Carnegie Museum of Art</B>, 4400 Forbes Ave., presents Matisse’s “The Thousand and One Nights” through July 15. Hours are 10 a.m. to 5 p.m. Tuesdays through Saturdays, with additional hours until 8 p.m. Thursdays, and noon to 5 p.m. Sundays. Admission is $15 for adults, $12 for senior citizens, $11 for students with ID and children age 3 to 18, and free for members and children younger than 3. Call 412-622-3131 or visit www.cmoa.org.<B>Society for Contemporary Craft</B>, 2100 Smallman St., hosts an exhibition of enamel jewelry by Alexandra Raphael through June 30. “Transformation 8: Contemporary Works in Small Metals,” a biennial show featuring the work of 33 metalsmiths, continues through June. 30. Gallery hours are 10 a.m. to 5 p.m. Mondays through Saturdays. Call 412-261-7003.