The Old Stone House has public tours Saturdays from 10 a.m. to 5 p.m. and Sundays from noon to 5 p.m. through Oct. 26. The Old Stone House at the intersection of Routes 8, 173 and 528 in Brady Township is operated by Slippery Rock University. Call 724-738-2409.

Harmony Museum, 218 Mercer St., Harmony, offers 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 or visit www.harmonymuseum.org.

Phipps Conservatory and Botanical Gardens will host festivities from 11 a.m. to 4 p.m. Saturday for Discovery Garden Day, an annual celebration featuring children's hands-on crafts and activities. Conservatory hours are 9:30 a.m. to 5 p.m. daily and until 10 p.m. Fridays. Call 412-622-6914 or visit phipps.conservatory.org.ToonSeum, Pittsburgh's Museum of Cartoon Art at 945 Liberty Ave., hosts an exhibit about the children's book series “Little Golden Books” through June 30. Hours are 10:30 a.m. to 3:30 p.m. Mondays, Wednesdays and Thursdays, 10:30 a.m. to 7 p.m. Fridays, 10:30 a.m. to 5 p.m. Saturdays and 11 a.m. to 5 p.m. Sundays; closed Tuesdays. 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. Call 412-232-0199 or visit toonseum.org.Children's Museum, 10 Children's Way, Allegheny Square, hosts “XOXO: An Exhibit About Love and Forgiveness” through Aug. 31. The museum is open 10 a.m. to 5 p.m. daily. Admission is $13 for adults and $12 for senior citizens and children ages 2 to 18. Call 412-322-5058 or visit www.pittsburghkids.org.Carnegie Museum of Natural History, 4400 Forbes Ave. in Oakland, presents “Race: Are We So Different?” through Oct. 27. Hours are 10 a.m. to 5 p.m. Mondays and Wednesdays through Saturdays and noon to 5 p.m. Sundays with extended hours until 8 p.m. Thursdays. Closed Tuesdays. Admission is $17.95 for adults, $14.95 for senior citizens, and $11.95 for students with ID and children ages 3 to 18. Admission after 4 p.m. Thursdays is discounted. Call 412-622-3131 or visit www.carnegiemnh.org.Silver Eye Center for Photography, 1015 E. Carson St., presents “Here & Now: Queer Geographies in Contemporary Photography” exhibit through July 19. Hours are noon to 6 p.m. Tuesday through Saturday. Admission is free. Call 412-431-1810.