Butler County Historical Society will celebrate the history of Alameda Park at 7 p.m. today in the park's Carousel Shelter off New Castle Road. Bill May will give a 50-minute slide show presentation about the activities and attractions that brought thousands of people to the park in its early days. In the event of rain, check for cancellation information after 5:30 p.m. Thursday at www.butlerhistory.com or by calling 724-283-8116.

Harmony Museum, Mercer Street, Harmony, has sold out the Quilt in a Day event on Tuesday. The museum's 10th annual Herb & Garden Fair will be from 9 a.m. to 4 p.m. June 9. Admission is free. Call 724-452-7341 or e-mail hmuseumzoominternet.net.

Carnegie Science Center, North Side, will honor veterans with a memorial on Sunday. Led by veterans of USS VI Requin Base, the ceremony will take place from 10 to 11 a.m. on the USS Requin submarine, docked on the Ohio River. The event is free. The public is encouraged to watch from the Ohio River shore. The science center will be open on Monday, Memorial Day. Admission is $17.95 for adults and $11.95 for children ages 3 to 12. Most activities are included in the admission price, but some, like Omnimax films, cost extra. Call 412-237-3400.Children’s Museum, 10 Children’s Way, Allegheny Square, will be closed Monday in observance of Memorial Day. “The Wizard of Oz Children’s Educational Exhibition” opens Saturday and continues through Sept. 2. Regular museum hours are 10 a.m. to 5 p.m. Mondays to Saturdays and noon to 5 p.m. Sundays. Admission is $12 for adults, $11 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.Phipps Conservatory and Botanical Gardens at One Schenley Park presents its summer flower show “Fountains of Youth” through Sept. 30. Phipps is open daily from 9:30 a.m. to 5 p.m. and until 10 p.m. Fridays. Admission is $12 for adults; $11 for senior citizens and students with ID; $9 for children ages 2 to 18; and free for children younger than 2. Call 412-622-6914 or visit phipps.conservatory.org. The new Center for Sustainable Landscapes debuts Wednesday.ToonSeum, Pittsburgh’s Museum of Cartoon Art at 945 Liberty Ave., celebrates a jazz film icon with the Betty Boop Film Festival from 8 to 10 p.m. June 2. Admission is $12. Visit www.boopfest.eventbrite.com.Heinz History Center, 1212 Smallman St., presents “Stars and Stripes: An American Story” through June 17. The center is open daily from 10 a.m. to 5 p.m. Admission is $10 for adults, $9 for senior citizens, $5 for students with ID and for children ages 4 to 17, and free for children 3 and younger. Call 412-454-6000 or visit www.heinzhistorycenter.org.