Old Stone House will present a six-session Early American Hearth Cooking class beginning Feb. 8. Students will practice a variety of cookery techniques, from stewing and roasting to baking breads and desserts. They will use the Tavern Room at the Old Stone House, at the intersection of Routes 8 and 173, including its open hearth built in 1822. Classes will meet from 10 a.m. to 2 p.m. each Saturday from Feb. 8 to March 15. Tuition is $150, including all materials and supplies, as well as a hearthside cooking recipe book. Classes are limited to eight. Call 724-738-4964 or send e-mail to oldstonehouse@sru.edu.

Harmony Museum, 218 Mercer St., Harmony, offers tours from 1 to 4 p.m. daily except when the museum is closed Mondays. Admission is $7 for adults, $6 for senior citizens, and $3 for youths age 6 to 17. Call 724-452-7341 or visit www.harmonymuseum.org.

For the 20th year, a model railroad is on display from 12:30 to 5 p.m. Saturdays and Sundays through Feb. 1 at Donaldson Motors, 714 River Ave., Emlenton. The HO scale railroad covers an area that is more than 28 feet by 16 feet. Lionel trains and Thomas the Tank Engine are also on display. There is no admission charge. Call 724-867-2293.

National Aviary, 700 Arch St., has daily baby penguin meet-and-greets. The “Canary’s Call” exhibit showcases four signature bird species and a number of other birds from around the world. Admission is $13 for adults, $12 for senior citizens, $11 for children ages 2 to 18, and free for children younger than 2. Hours are 10 a.m. to 5 p.m. daily. Call 412-323-7235 or visit www.aviary.org.Phipps Conservatory and Botanical Gardens, 1 Schenley Park, presents the annual Orchid and Tropical Bonsai Show through March 9. Phipps is open daily from 9:30 a.m. to 5 p.m. and until 10 p.m. Fridays. Admission is $15 for adults, $14 for senior citizens and students, and $11 for children ages 2 to 18. Call 412-622-6914 or visit phipps.conservatory.org.Heinz History Center, 1212 Smallman St., hosts “Poptastic!” focusing on Pittsburgh artist Burton Morris through Feb. 23. Admission is $15 for adults, $13 for senior citizens, and $6 for students and children ages 6 to 17. Call 412-454-6000 or visit www.heinzhistorycenter.org.ToonSeum, Pittsburgh’s Museum of Cartoon Art at 945 Liberty Ave., presents “Color Me Happy: ’50s Coloring Book Illustrations as Modern Memes” Friday through March 16. “Wonder Women: On Page and Off” runs through March 30. Hours are 10:30 a.m. to 3:30 p.m. Mondays, Wednesdays and Thursdays, 10:30 a.m. to 7 p.m. Fridays, 10:30 a.m. to 5 p.m. Saturdays and 11 a.m. to 5 p.m. Sundays; closed Tuesdays. Admission is $6 for those over age 13 and $3 for children ages 6 to 12. Senior citizens, college students, veterans and active military pay $5. Call 412-232-0199 or visit toonseum.org.Children’s Museum, 10 Children’s Way, Allegheny Square, is open 10 a.m. to 5 p.m. daily. Admission is $13 for adults, and $12 for children ages 2 to 18 and senior citizens. Call 412-322-5058 or visit www.pittsburghkids.org.