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. Entries for the annual spring show and sale a due by Saturday. Forms are available at www.aabcArtCenter.com. The center is open 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.

Saxonburg Area Artists Cooperative, 215 Main St., rear, Saxonburg, will present the third annual Invitational High School Senior Art Exhibit May 5 through June 2. Schools invited to participate include: Knoch, Freeport, St. Joseph, Deer Lakes, Highlands, Kittanning, Springdale and Valley. The exhibit will open with a reception from 6:30 to 8:30 p.m. May 5. Regular gallery hours are 1 to 9 p.m. Fridays and 10 a.m. to 8 p.m. Saturdays. Call 412-260-5779, 724-352-1795 or 412-849-4648.

Bottlebrush: A Gallery for the Arts, 539 Main St., Harmony, is the site of the Zelienople Art Club’s Fine Art Show through Sunday. An opening reception for St. Stephen’s Lutheran Academy, Zelienople, Student Exhibit will be held from 7 to 9 p.m. May 3. The show will continue through May 16. Regular 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.