COUNTY

The Old Stone House at the intersection of Routes 8, 173 and 528 in Brady Township has tours between 10 a.m. and 5 p.m. Saturdays and noon and 5 p.m. Sundays through Oct. 26. Admission is $3 per person or $5 per family. The historic site is owned and operated by Slippery Rock University. Call 724-738-2409.

Harmony Museum, 218 Mercer St., Harmony, has guided 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.

REGION

Meadowcroft Rockshelter and Historic Village, 401 Meadowcroft Road, Avella, Washington County, will have an American Indian Heritage Weekend Saturday and Sunday. Call 724-587-3412.

PITTSBURGH

Heinz History Center, 1212 Smallman St., has free admission Saturday for Museum Day Live, an annual event hosted by Smithsonian magazine. However, tickets must be printed. Visit smithsonianmag.com/museumday/tickets.

Carnegie Science Center North Side, continues the exhibit “Blue!” through Jan. 1. The center will be closed Sunday. General admission is $17.95 for adults and $11.95 for children ages 3 to 12. Visit CarnegieScienceCenter.org.

Phipps Conservatory and Botanical Gardens, 700 Frank Curto Drive, hosts the summer flower show until Oct. 5. Conservatory hours are 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 $11 for children ages 2 to 18. Visit phipps.conservatory.org.

ToonSeum featuring cartoon art at 945 Liberty Ave., presents “Cartoons are the Best Medicine: The Healing Humor of Dan Piraro,” an exhibit featuring 20 Bizarro cartoons on health and the medical profession, through Nov. 2. Admission is $6 for those over age 13 and $3 for children ages 6 to 12. Senior citizens, college students, veterans and active military pay $5. Visit toonseum.org.

Children's Museum, 10 Children's Way, Allegheny Square, is showing the annual Tough Art exhibit. 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, except holidays. Visit www.pittsburghkids.org.

Carnegie Museum of Natural History, 4400 Forbes Ave., Oakland, presents “Race: Are We So Different?” through Oct. 27. Admission is $17.95 for adults, $14.95 for senior citizens, and $11.95 for children ages 3 to 18. Admission after 4 p.m. Thursdays is discounted. Visit www.carnegiemnh.org.