COUNTY

The Old Stone House at the intersection of Routes 8, 173 and 528, is owned and managed by Slippery Rock University. It hosts special events and group tours by appointment. Call 724-738-2409 or visit www.oldstonehousePA.org.

REGION

Meadowcroft Rockshelter and Historic Village, Avella, Washington County, is open for the season. Hours are Wednesdays through Saturdays from noon to 5 p.m., and on Sundays from 1 to 5 p.m. Admission is $15 for adults, $14 for senior citizens, and $7 for students and children 6 to 17. Visit heinzhistorycenter.org/meadowcroft.

PITTSBURGH

Carnegie Science Center, North Side, hosts Snowball Day on June 21, the summer solstice. Visitors who bring in saved, still-frozen snowballs can name their own price for general admission. Activities and demonstrations are planned. A 31-hour Omnimax movie marathon is slated for July 8 and 9. Regular center admission is $18.95 for adults and $11.95 for children 3 to 12. Hours are 10 a.m. to 7 p.m. Saturdays and 10 a.m. to 5 p.m. Sundays through Fridays. Visit CarnegieScienceCenter.org.

National Aviary, 700 Arch St., presents Lanner falcons, hooded vultures, black kites and eagles in the free-flight, open air show “Soar!” on the Sky Deck. The aviary is open daily from 10 a.m. to 5 p.m. Admission is $14 for adults and $13 for senior citizens and children 2 to 12. Visit www.aviary.org.

Phipps Conservatory and Botanical Gardens, 700 Frank Curto Drive, features the Butterfly Forest. Hours are 9:30 a.m. to 5 p.m. daily and until 10 p.m. Fridays. Admission is $17.95 for adults, $16.95 for senior citizens, and $11.95 for children 2 to 18. Visit phipps.conservatory.org.

Heinz History Center, 1212 Smallman St., hosts “#Pixburgh: A Photographic Experience.” Hours are 10 a.m. to 5 p.m. daily. Admission is $16 for adults, $14 for senior citizens, and $6.50 for children 6 to 17. Visit www.heinzhistorycenter.org.

Children’s Museum, Allegheny Square, hosts “Hands-On Harley-Davidson” through Sept. 10. Kick Off to Summer Free Day with Allegheny SolarFest will be 10 a.m. to 5 p.m. June 25. Regular hours are 10 a.m. to 5 p.m. daily. Regular admission is $16 for adults and $14 for children 2 to 18 and senior citizens. Visit www.pittsburghkids.org.

Carnegie Museum of Natural History, 4400 Forbes Ave., presents “The Power of Poison” exhibition through Sept. 4. 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.

ToonSeum, Pittsburgh’s Museum of cartoon art, 945 Liberty Ave., is open 11 a.m. to 5 p.m. Wednesdays through Sundays. Admission is $8 for those 13 and up and $4 for children 6 to 12. Visit www.toonseum.org.