COUNTYButler County Historical Society at the Senator Walter Lowrie House Museum in March is open from 10 a.m. to 3 p.m. Tuesdays through Thursdays. Call 724-283-8116 or visit www.butlerhistory.com.The Old Stone House will host “Homebrewed History: Beer and Medieval Europe” at 2 p.m. April 2; tickets are $25, available by calling 724-738-4964 or visiting www.stonehouseCPH.org. Ticket holders must be 21 or older. Also, an exhibition called “Here & There,” exploring batik craftsmanship and techniques used to create designs on cloth, is planned for 2 to 4 p.m. April 9 and 16; exhibit admission is free. School-aged children can try basic batik activities both days. Teachers and art camp directors can register their students ahead of time to ensure enough materials for projects. For more information, call 724-738-4586.Harmony Museum, 218 Mercer St., has 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 Science Center, North Side, will host its annual SpaceOut! Astronomy weekend with activities from 10 a.m. to 4 p.m. Saturday and Sunday. Center hours are 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. Visit CarnegieScienceCenter.org.Heinz History Center, 1212 Smallman St., presents “Toys of the ’50s, ’60s and ’70s.” Center admission is $16 for adults, $14 for senior citizens, and $6.50 for children ages 6 to 17. Hours are 10 a.m. to 5 p.m. daily. Visit www.heinzhistorycenter.org.National Aviary, 700 Arch St., presents a baby Linnaeus’ two-toed sloth that recently joined the flock. Admission is $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 alternative weekly newspapers, 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 TapeScape 2.0, showing unexpected uses for packing tape, through May 22. 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 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.