The Old Stone House, Route 528 near the intersections of Routes 8 and 173 in Brady Township, hosts a presentation by Civil War storyteller Steven Anderson at 11 a.m. Saturday. Anderson will present “Homegrown Heroes: Pennsylvania Communities in the Civil War.” A storyteller and guide at the Gettysburg Battlefield for the past 10 years, Anderson will tell stories about the role of Pennsylvania communities during the Civil War, including several stories about Butler County. Admission is free, but reservations are required; call 724-738-4964 or e-mail oldstonehouse@sru.edu.

Harmony Museum will present an antique show and sale at its historic 1805 barn annex at 303 Mercer Road in Harmony on Sept. 28 and 29. Hours are 10 a.m. to 5 p.m. Sept. 28 and 11 a.m. to 4 p.m. Sept. 29. Admission is $3, with proceeds benefiting museum operations. Lunch and refreshments will be available.

Heinz History Center, 1212 Smallman St., presents “Poptastic!” focusing on Pittsburgh artist Burton Morris and featuring more than 100 works of art. The exhibit continues through Feb. 23 and is included with center admission of $15 for adults, $13 for senior citizens, and $6 for students and children ages 6 to 17. “Pennsylvania’s Civil War” continues through Jan. 5. Call 412-454-6000 or visit www.heinzhistorycenter.org.Phipps Conservatory and Botanical Gardens, 1 Schenley Park, will host “Science Stories from the Field” from 7 to 8:30 p.m. Sept. 27 and “Science Casual Conversations” from 1:30 to 3 p.m. Sept. 28. Phipps admission is $15 for adults, $14 for senior citizens and students, and $11 for children ages 2 to 18. Farmers at Phipps runs from 2:30 to 6:30 p.m. Wednesdays. The summer flower show: Glass in the Gardens continues through Oct. 6. Call 412-622-6914 or visit phipps.conservatory.org.National Aviary, 700 Arch St., hosts “Beaks!” daily at 11 a.m. and 3 p.m. through Jan. 1. The show is $5 in addition to the regular admission, which is $13 for adults, $12 for senior citizens, $11 for children ages 2 to 18, and free for children younger than 2. Aviary hours are 10 a.m. to 5 p.m. daily. Call 412-323-7235 or visit www.aviary.org.ToonSeum, Pittsburgh’s Museum of Cartoon Art at 945 Liberty Ave., will showcase original animation art, comic art and artifacts of some of cartooning’s most iconic quackery — from Donald to Daffy and Baby Huey to Quackula — in “Duck!” running Sept. 27 to Oct. 20. Museum hours are 10 a.m. to 3 p.m. Mondays, Wednesdays, Thursdays and Sundays and 10 a.m. to 5 p.m. Fridays and Saturdays. Admission is $1 for children ages 6 to 12 and $5 for adults. Call 412-232-0199 or visit www.toonseum.org.Children’s Museum, 10 Children’s Way, Allegheny Square, is showing the exhibit “Ball,” featuring 500 beach balls, larger inflatable balls, a disco ball and music. “Tough Art” opens today. Regular hours are 10 a.m. to 5 p.m. daily. Admission is $13 for adults, $12 for children ages 2 to 18 and senior citizens, and free for children younger than 2. Call 412-322-5058 or visit www.pittsburghkids.org.Carnegie Museum of Natural History, 4400 Forbes Ave., Oakland, presents “Roads of Arabia: Archaeology and History of the Kingdom of Saudi Arabia” through Nov. 3. Museum hours are 10 a.m. to 5 p.m. Tuesdays to Saturdays, with extended hours until 8 p.m. Thursdays, and noon to 5 p.m. Sundays. Admission is $17.95 for adults, $14.95 for senior citizens, and $11.95 for students and children ages 3 to 18. Admission after 4 p.m. Thursdays is discounted. Call 412-622-3131 or visit www.carnegiemnh.org.