Passavant House at 243 S. Main St., Zelienople, will feature it's annual Luncheon on the Lawn with an antiques and garden accents sale during the town's annual Horse Trading Days festival, which runs today through Saturday. Call 724-452-9457.

Cooper Cabin Pioneer Homestead, 199 Cooper Road, Cabot, will be open July 26 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 West Diamond Street, directly behind the Butler County Courthouse, in downtown Butler. Call 724-283-8116.

Harmony Museum on Mercer Street in Harmony, representing the town founded in 1804 by pacifist German Lutheran Separatists and their Harmony Society, 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. The 5-foot by 4-foot painting is on loan to the Harmony Museum after being displayed at the Fort Pitt Museum in Pittsburgh. 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>National Aviary</B>, 700 Arch St., hosts a Birthday Party for the rainbow lorikeets from 11 a.m. to 1 p.m. Saturday. Activities are included in general admission. FliteZone continues 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., features in the Western Pennsylvania Sports Museum the 12th annual Jerry Malloy Negro Baseball League Conference, a three-day national event, today through Saturday. One of the highlights will be Hall of Famer Lou Brock, who will provide the keynote address as part of the awards banquet on Saturday. "Forbes Field: A Century of Memories" commemorating the 100th anniversary of one of America's most famous ballparks continues, as does "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>Pittsburgh Children's Museum</B>, 10 Children's Way, Allegheny Square, is hosting "Bob the Builder - Project: Build It" through Sept. 27. "Meet Bob" takes place at 11:30 a.m. Fridays and at 2 p.m. Sundays. 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>Phipps Conservatory and Botanical Gardens</B> in Schenley Park continues "Life in the Gardens: Fräbel Glass at Phipps" through January 2010. This exhibit features the imaginative 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 rates are $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.

<B>Compass Inn Museum</B>, Route 30 in Laughlintown, will be the site of a Scots-Irish themed living history weekend Saturday and Sunday. Music, costumed docents, demonstrations in the cookhouse, blacksmith and carpenter's shops are planned. Craft demonstrations will include bobbin lace making, candle dipping, weaving and spinning. Hours are 11 a.m. to 4 p.m. Saturday and 1 to 5 p.m. Sunday. Admission is $9 for adults, $8 for senior citizens, $6 for students, and free for children younger than 5. Call 724-238-4983 or visit the Web site, www.compassinn.com.