The Art Center, 344 S. Main St., hosts the annual Holiday Show and Sale through Jan. 2. Exhibited in the Members' Gallery is artwork by Donna McClellan. Regular hours are noon to 6 p.m. Wednesdays and Thursdays, noon to 3 to 6 to 9 p.m. Fridays and noon to 4 p.m. Saturdays. Admission is free. Call 724-283-6922 or visit www.theartcenterbutlerpa.org.

Maridon Museum, 322 N. McKean St., features a display of jade plus a separate exhibit of white elephants and other ivory pieces in addition to the permanent collection of hundreds of pieces of ancient and contemporary Asian art as well as Meissen porcelain. Regular museum hours are 11 a.m. to 5 p.m. Tuesdays through Saturdays and noon to 5 p.m. Sundays; closed Mondays and holidays. Admission is $4 for adults, $3 for senior citizens and students, and free for children younger than age 8; children must be accompanied by an adult. Tours are led by trained docents and are available with advance notice. The museum also has a gift shop specializing in gifts and decorative art objects relating to China and Japan. Call 724-282-0123.

<B>"In the Making: 250 Years/250 Artists"</B> is showing through Jan. 10 at Fe Arts Gallery, 4102 Butler St. in the Lawrenceville section of Pittsburgh. Admission is free. This salon-style exhibition celebrates Pittsburgh's 250th birthday by featuring the work of 250 Southwestern Pennsylvania artists from 14 counties. Representing Butler County are Debbie Kuminkoski, Akiko Kotani and Rhoda Taylor. Painting, drawing, photography, sculpture, glass, jewelry and fiber arts will be showcased, as well as work in less conventional mediums. Gallery hours are noon to 4 p.m. Wednesdays through Saturdays, and some hours on holidays. Call 412-860-6028.<B>North Hills Art Center</B>, 3432 Babcock Blvd. in Ross Township, is hosting the Student and Instructor Art Show and Holiday Shop and Show through Jan. 8. Admission and parking are free. Regular gallery hours are 11 a.m. to 4 p.m. Mondays through Fridays. Call 412-364-3622 or visit the Web site, www.northhillsartcenter.com.<B>Carnegie Museum of Art</B>, 4400 Forbes Ave., is showing the architectural etchings and engravings of "Giovanni Battista Piranesi: Architecture and the Spaces of the Imagination" through Feb. 15. Continuing are "Worlds Away: New Suburban Landscapes" through Jan. 18, and "Life on Mars, the 2008 Carnegie International," through Jan. 11. 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. Closed major holidays. Admission, which includes the Carnegie Museum of Natural History, is $15 for adults, $12 for senior citizens, and $11 for students and children 3 and older, and free for members and children younger than 3. Call 412-622-3131 or visit the Web site, www.cmoa.org.