Associated Artists of Butler County hosts the seventh “Art of Horror Show” in the Underground Gallery through Nov. 2. Continuing at The Art Center is “Six Artists One Vision,” an exhibition of artwork in a variety of media by a group of family and friends, through Nov. 9. Art Center 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., presents Fumino Hora's brass sculptures “Soldiers,” part of a set of works called “Hina,” now permanently on exhibit at the Maridon. The museum 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 advance notice for no extra charge. Call 724-282-0123 or visit www.maridon.org.

Bottlebrush: A Gallery for the Arts, 539 Main St., Harmony, presents the Slippery Rock University Student Art Show through Oct. 26. Eighteen artists are showing two- and three-dimensional artwork. Admission is free. Hours are 11 a.m. to 4 p.m. daily. Call 724-452-0539.

Hoyt Institute of Fine Arts, 124 E. Leasure Ave., New Castle, presents the Hoyt Mid Atlantic Juried Exhibition through Nov. 2. Hours are 11 a.m. to 8 p.m. Tuesdays and Thursdays and 11 a.m. to 4 p.m. Wednesdays, Fridays and Saturdays. Admission is free. Call 724-652-2882 or visit www.hoytartcenter.org.Red Brick Gallery, 17 Main St., Foxburg, is featuring the pottery of Amanda Lewis and the creative mixed media work of Carol McDonald. Hours are 4 to 8 p.m. Fridays, noon to 8 p.m. Saturdays, and 1 to 6 p.m. Sundays. E-mail edmonds@embarqmail.com.

Carnegie Museum of Art, 4400 Forbes Ave., hosts “Inventing the Modern World,” which showcases decorative arts and design innovations from World's Fairs, through Feb. 24. 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 $17.95 for adults, $14.95 for senior citizens, $11.95 for students with ID and children ages 3 to 18, and free for children younger than 3. Call 412-622-3131 or visit www.cmoa.org.Filmmakers Galleries, 477 Melwood Ave., presents a new photography exhibit, the Marcellus Shale Documentary Project, with work from six photographers, through Jan. 6. Hours are noon to 7 p.m. Mondays through Thursdays and noon to 6 p.m. Fridays. E-mail info@the-msdp.us.Silver Eye Center for Photography, 1015 E. Carson St., hosts “No Job No Home No Peace No Rest: An Installation by Will Steacy” through Dec. 15. Hours are noon to 6 p.m. Tuesdays through Saturdays. Admission is free. Call 412-431-1810 or visit www.silvereye.org.Society for Contemporary Craft, 2100 Smallman St., hosts “Humor in Craft” through Oct. 27. Hours are 10 a.m. to 5 p.m. Mondays through Saturdays. Admission is free. Call 412-261-7003.