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

PITTSBURGHNational Aviary, 700 Arch St., presents a baby Linnaeus’s two-toed sloth that recently joined the flock and will be featured in education programs highlighting rain forest species. “An Australian Adventure” program is set for 11 a.m. to 3 p.m. Saturday through Monday and is included with admission of $14 for adults and $13 for senior citizens and children ages 2 to 12. Hours are 10 a.m. to 5 p.m. daily. Visit www.aviary.org.ToonSeum, Pittsburgh’s Museum of Cartoon Art, 945 Liberty Ave., hosts “Alt-Weekly Comics,” a historical retrospective dedicated to the comics of the alternative weekly newspaper world, and “Fear of a Black Marker: Cartoons by Keith Knight, Gentleman Cartoonist,” both through April 10. Admission is $8 for those 13 and older and $4 for children 6 to 12. Visit toonseum.org.Children’s Museum, Allegheny Square, presents the play exhibit/art installation TapeScape 2.0, showing unexpected uses of packing tape, through May 22. Museum hours are 10 a.m. to 5 p.m. daily. Admission is $14 for adults and $13 for children ages 2 to 18 and senior citizens. Visit www.pittsburghkids.org.Phipps Conservatory and Botanical Gardens, 700 Frank Curto Drive, is open from 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 and $11 for children ages 2 to 18. Visit phipps.conservatory.org.Carnegie Science Center, North Side is open 10 a.m. to 7 p.m. Saturdays and 10 a.m. to 5 p.m. Sundays through Fridays. General admission is $18.95 for adults and $11.95 for children ages 3 to 12. The group does music from gospel to the American songbook. Visit CarnegieScienceCenter.org.