Associated Artists of Butler County continues the Invitational Art Show featuring more than 50 pieces of art by about 25 artists, including paintings, 3-D works and sculpture, through March 2. The Underground Gallery at The Art Center presents its fifth Gothic Show. Gallery hours are noon to 6 p.m. Wednesdays through Fridays and noon to 4 p.m. Saturdays. Admission is free. Call 724-283-6922 or visit www.aabcArtCenter.com.

Maridon Museum, 322 N. McKean St., is open 11 a.m. to 4 p.m. Wednesdays through Saturdays. Admission is $4 for adults, $3 for senior citizens and students, and free for children younger than 8. Guided tours are available with advanced notice for no extra charge. Call 724-282-0123 or visit www.maridon.org.

Hoyt Center for the Arts, 124 E. Leasure Ave., New Castle, presents “Preserving a Legacy: Shenango China” showcasing pieces by the former New Castle ceramics manufacturer through March 1. Admission is free. Hours are 11 a.m. to 8 p.m. Tuesdays and Thursdays and 11 a.m. to 4 p.m. Wednesdays, Fridays and Saturdays. Call 724-652-2882 or visit www.hoytartcenter.org.

Carnegie Museum of Art, 4400 Forbes Ave., is displaying “Inventing the Modern World: Decorative Arts at the World’s Fairs, 1851–1939” in the Heinz Galleries through Sunday. There are also two exhibits that rely on visitor participation: “20/20: Celebrating Two Decades of the Heinz Architectural Center” through May 19 and “Oh Snap! Your Take on Our Photographs” opening today. Visit ohsnap.cmoa.org to share pictures. Hours are 10 a.m. to 5 p.m. Tuesdays through Saturdays, with hours until 8 p.m. Thursdays, and noon to 5 p.m. Sundays. Admission is $17.95 for adults, $14.95 for senior citizens, $11.95 for students and children ages 3 to 18, and free for children younger than 3. Call 412-622-3131 or visit www.cmoa.org.