COUNTY

The Butler Ghost Walk will take place at 7:30 p.m. Fridays and Saturdays from Oct. 24 to Nov. 1. The 60-minute event begins in Diamond Park directly across from the Butler County Courthouse. The walk takes spectators on a guided tour to experience the ghosts from Butler’s historic past through tour guide Bill May’s stories of Sam Mohawk, the old hospital, the phantom Civil War regiment and others. Tickets are $10. Children under 18 must be accompanied by an adult. For reservations, call 724-256-9026 or e-mail butlerghostwalk@gmail.com.

The Old Stone House has public 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 at the intersection of Routes 8, 173 and 528 in Brady Township is owned and operated by Slippery Rock University. A harvest dinner Oct. 18 requires advanced registration at oldstonehousepa.org/tasteofhistory.

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.

PITTSBURGH

Children’s Museum, Allegheny Square, opens the exhibit “Bounce: Inspired by the World’s Most Amazing Ball!” on Saturday. The annual Tough Art exhibit continues. 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, will host a screening of the film “Jerusalem” followed by an interfaith panel at “Jerusalem and Three Major Religions” at 7 p.m. Monday. Cost is $10 before noon Monday or $13 at the door. Call 412-237-3400 or visit CarnegieScienceCenter.org. The exhibit “Blue!” continues through Jan. 1. Center hours are 10 a.m. to 7 p.m. Saturdays and 10 a.m. to 5 p.m. Sundays through Fridays, except the center is typically closed during Steelers’ home games. General admission is $17.95 for adults and $11.95 for children ages 3 to 12. Visit CarnegieScienceCenter.org.

Heinz History Center, 1212 Smallman St., hosts its newest long-term exhibition showcasing the Heinz company. Continuing through Jan. 4 is “Pittsburgh’s Lost Steamboat: Treasures of the Arabia.” Center admission is $15 for adults, $13 for senior citizens, and $6 for students and children ages 6 to 17. Visit www.heinzhistorycenter.org.

ToonSeum, featuring cartoon art, 945 Liberty Ave., presents “Cartoons are the Best Medicine: The Healing Humor of Dan Piraro,” an exhibition 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 6 to 12. Senior citizens, college students, veterans and active military pay $5. Visit toonseum.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 students with ID and children ages 3 to 18. Admission after 4 p.m. Thursdays is discounted. Visit www.carnegiemnh.org.