COUNTYHarmony Museum, 218 Mercer St., 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 6 to 17. Call 724-452-7341.

PITTSBURGHCarnegie Museum of Natural History, 4400 Forbes Ave., is showing “Amazing Butterflies” through April 23. Hours are 10 a.m. to 5 p.m. Mondays and Wednesdays through Saturdays with extended hours until 8 p.m. Thursdays and from noon to 5 p.m. Sundays. Admission is $19.95 for adults, $14.95 for senior citizens, and $11.95 for children 3 to 18. Visit www.carnegiemnh.org.Children’s Museum, Allegheny Square, opens “Hervé Tullet’s Art Explosion: Pittsburgh” on Saturday. Hours are 10 a.m. to 5 p.m. daily. Admission is $16 for adults and $14 for children 2 to 18 and senior citizens. Visit www.pittsburghkids.org.National Aviary, 700 Arch St., offers a new feeding program that allows guests to learn about the Curl-crested Aracaris at noon and 2:30 p.m. daily. Cost is $5. Call 412-258-9439 or e-mail education.programs@aviary.org.Carnegie Science Center, North Side hosts Skywatch from the rooftop observatory on Friday. Visit CarnegieScienceCenter.org.