COUNTY

Harmony Museum, 218 Mercer St., Harmony, hosts tours 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.

The Old Stone House is open from May through October from 10 a.m. to 5 p.m. Saturdays and noon to 5 p.m. Sundays. Admission is $3 per person or $5 per family. The historic site at the intersection of Routes 8, 173 and 528 in Brady Township is owned and operated by Slippery Rock University. Call 724-738-2409 or visit www.oldstonehousePA.org.

PITTSBURGH

Phipps Conservatory and Botanical Gardens, 700 Frank Curto Drive, presents the Spring Flower Show through April 12. The Butterfly Forest opens April 25. Hours are 9:30 a.m. to 5 p.m. daily, and until 10 p.m. Fridays. Admission is $15 for adults; $14 for students and senior citizens; and $11 for children ages 2 to 18. Call 412-622-6914.

Heinz History Center, 1212 Smallman St., hosts the largest public display of original items from the “Mister Rogers’ Neighborhood” television show in the fourth floor Special Collections Gallery. Center admission is $15 for adults, $13 for senior citizens, and $6 for students. Visit www.heinzhistorycenter.org.

ToonSeum, Pittsburgh’s Museum of Cartoon Art, 945 Liberty Ave., celebrates the Teenage Mutant Ninja Turtles with a retrospective on display through April 26.Admission is $8 for those over age 13 and $4 for children ages 6 to 12. Senior citizens, college students, veterans and active military pay $7. Visit toonseum.org.

Children’s Museum, Allegheny Square, presents “Rainbow Jumpy,” featuring a 30-foot inflatable rainbow-striped tunnel. Museum admission is $14 for adults and $13 for children ages 2 to 18 and senior citizens. Hours are 10 a.m. to 5 p.m. daily. Visit www.pittsburghkids.org.

Carnegie Science Center, North Side, hosts the exhibits “H2Oh!” and “Blue!” 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.