Maridon Museum, 322 N. McKean St., is open 11 a.m. to 5 p.m. Tuesdays through Saturdays and noon to 5 p.m. Sundays; closed Mondays. Admission is $4 for adults, $3 for senior citizens and students and free for children younger than 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 objects relating to China and Japan. Call 724-282-0123 or visit www.maridon.org.

Saxonburg Area Artists Co-Op, 215 Main St., rear, in Saxonburg, is open 6 to 9 p.m. Thursdays, 1 to 9 p.m. Fridays, 10 a.m. to 2:30 p.m. Saturdays and by appointment, though visitors should call 412-260-5779 or 412-849-4648 to confirm.

Bottlebrush Gallery, 539 Main St., Harmony, is open 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. Call 724-452-0539 or visit www.bottlebrushgallery.com

<B>Carnegie Museum of Art</B>, 4400 Forbes Ave., concludes today the Italian Nativity Neapolitan Presepio as well as the holiday trees with decorations “Inspired by the Muses.” Continuing is “Ordinary Madness” through Sunday in the Heinz Galleries. 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. Regular admission, which includes the Carnegie Museum of Natural History, is $15 for adults, $12 for senior citizens age 65 and older, and $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 the website, www.cmoa.org.<B>Silver Eye Center for Photography</B>, 1015 E. Carson St., presents the Fellowship 2010 Exhibitions: Laura Heyman’s “Pa Bouje Anko: Don’t Move Again” and Laura Bell’s “The Alba Series” through Jan. 15. Heyman’s photos were taken in Port-au-Prince, Haiti, while Bell’s were shot in Edinburgh, Scotland. Gallery hours are noon to 6 p.m. Tuesdays through Saturdays. Admission is free. Call 412-431-1810 or visit www.silvereye.org.<B>Society for Contemporary Crafts</B>, 2100 Smallman St., features the work of Pittsburgh artist Ron Layport. Also showing is “DIY: A Revolution in Handicrafts” in the main galleries through March 26. Gallery hours are 10 a.m. to 5 p.m. Tuesdays through Saturdays and by appointment Mondays. Call 412-261-7003.<B>Andy Warhol Museum</B>, 117 Sandusky St., is open 10 a.m. to 5 p.m. Tuesdays through Sundays and open later until 10 p.m. Fridays; closed holidays. Admission is $15 for adults, $9 for senior citizens and $8 for students and children. Call 412-237-8300.