Harmony Museum on Mercer Street in Harmony, will have its annual Harmoniefest dinner and program Feb. 16 in Stewart Hall, 218 Mercer St. The evening will include an illustrated presentation by authors of the recently published “The Civil War in Pennsylvania: A Photographic History.” Books will be available for purchase and signing. Reservations due by Feb. 8. Call 724-452-7341.

REGION

A 28-foot-by-16-foot HO model railroad display will be running from 12:30 to 5 p.m. Saturday and Sunday at Donaldson Motors, 714 River Ave., Emlenton. Call 724-867-2293.

Phipps Conservatory and Botanical Gardens continues the orchid and tropical bonsai show through Feb. 24. Hours are 9:30 a.m. to 5 p.m. daily and until 10 p.m. Fridays. Admission is $15 for adults, $14 for senior citizens and students, $11 for children ages 2 to 18, and free for children younger than 2. Call 412-622-6914 or visit phipps.conservatory.org.The Holocaust Center of Pittsburgh and the August Wilson Center have partnered to present “The Nazi Olympics: Berlin 1936” through Feb. 28 at the Wilson Center, 980 Liberty Ave. Call 412-421-1500 or visit www.AugustWilsonCenter.org.Heinz History Center, 1212 Smallman St., presents “From Slavery to Freedom,” a long-term exhibit about the history of the anti-slavery movement and the impact of 19th century activism. Hours are 10 a.m. to 5 p.m. daily. Admission is $15 for adults, $13 for visitors 62 and older, $10 for students and children 6 to 17, and free for children 5 and younger. Call 412-454-6000 or visit www.heinzhistorycenter.org.Children’s Museum, 10 Children’s Way, Allegheny Square, hosts “Missing Links (The Rainbow Jumpy)” through Feb. 3. Hours are 10 a.m. to 5 p.m. daily. Admission is $13 for adults, $12 for children ages 2 to 18 and senior citizens, and free for children younger than 2. Call 412-322-5058 or visit www.pittsburghkids.org.Carnegie Science Center, North Side, presents Spaceplace, a permanent exhibit featuring a walk-in replica of the International Space Station and a weightlessness experience. Center admission is $17.95 for adults and $11.95 for children ages 3 to 12. Call 412-237-3400 or visit CarnegieScienceCenter.org. Hours are 10 a.m. to 7 p.m. Saturdays and 10 a.m. to 5 p.m. Sundays through Fridays.