Cooper Cabin Pioneer Homestead, 199 Cooper Road, Cabot, will be open Sunday for a program and docent-led tours of the cabin and grounds. Activities will include wood carver Bill Vogel demonstrating the art of hand-carving. The cabin was built circa 1810 by the Cooper family and was home to their descendants until 1963. The property includes the cabin, a spinning house, a springhouse and an herb garden cared for by the Herbal Thymes Garden Club and the Master Gardeners. Admission is $3 for adults, $2 for youths ages 5 to 17 and senior citizens, and free for children younger than 5 and Butler County Historical Society members. Call 724-283-8116.

Butler County Heritage Center, 119 W. New Castle St., celebrating the 150th anniversary of the birth of the oil industry with two exhibits, will be open from 9 a.m. to noon Wednesdays and noon to 4 p.m. Fridays during July. Admission is $5 for adults, $2 for ages 5 to 17, and free for age 5 and younger. Call 724-283-8116.

Lowrie/Shaw House, 123 W. Diamond St., built in 1828 by Butler's only United States senator, will be open from noon to 4 p.m., with the last tour beginning at 3 p.m., Wednesdays and Fridays. Admission is $3 for adults, $1 for ages 5 to 17, and free for age 5 and younger. The house museum is located at 123 W. Diamond St., directly behind the Butler County Courthouse. Call 724-283-8116.

Harmony Museum on Mercer Street in Harmony is displaying "The First Shot," Deac Mong's painting depicting a "French Indian" firing the first shot of the French and Indian War at young Virginia Maj. George Washington near Harmony in 1753. Regular guided tours are offered from 1 to 4 p.m. daily except Mondays and holidays; reservations are suggested for weekends and required for groups. Call 724-452-7341 or 888-821-4822, or visit the Web site, www.harmonymuseum.org.

<B>Pittsburgh Children's Museum</B>, 10 Children's Way, Allegheny Square, is hosting "Bob the Builder ¿ Project: Build It" through Sept. 27. House Week, when visitors can build a birdhouse, doghouse or temporary shelter, will be Monday through Aug. 2. Regular museum hours are 10 a.m. to 5 p.m. Mondays to Saturdays; and noon to 5 p.m. Sundays. Admission is $11 for adults; $10 for senior citizens and children ages 2 to 18, and free for children younger than 2. Call 412-322-5058 or visit the Web site, www.pittsburghkids.org. <B>National Aviary</B>, 700 Arch St., presents FliteZone at 11:30 a.m. and 2:30 p.m. Wednesdays through Sundays through Labor Day, Sept 7. The new Penguin Point is open. Aviary hours are from 9 a.m. to 5 p.m. daily through Sept 7. Admission is $10 for adults; $9 for senior citizens; $8.50 for children ages 2 to 12; and free for children younger than 2. Call 412-323-7235 or visit the Web site, www.aviary.org.<B>Heinz History Center</B>, 1212 Smallman St., is featuring "Forbes Field: A Century of Memories" commemorating the 100th anniversary of one of America's most famous ballparks, plus "Lincoln: The Constitution and the Civil War and Lincoln Slept Here." History Center hours are 10 a.m. to 5 p.m. daily, except holidays. Admission is $10 for adults, $9 for senior citizens age 62 and older, $5 for students with ID and for children ages 4 to 17, and free for children 3 and younger. Call 412-454-6000.<B>Phipps Conservatory and Botanical Gardens</B> in Schenley Park continues "Life in the Gardens: Fräbel Glass at Phipps" through January. This exhibit features the artistry of German-born artist Hans Godo Fräbel, a founding father of modern glass sculpture. Phipps is open daily from 9:30 a.m. to 5 p.m. and until 10 p.m. on Fridays. Admission is $10 for adults, $9 for seniors age 62 and older and students with ID, and $7 for children ages 2 to 18. Phipps members and children under 2 are admitted free. Call 412-622-6914 or visit www.phipps.conservatory.org.