COUNTY,/b>Butler County Historical Society at the Senator Walter Lowrie House Museum, 123 W. Diamond St., is open 9 a.m. to 4 p.m. Tuesdays through Fridays. Call 724-283-8116 or visit www.butlerhistory.com.Harmony Museum, 218 Mercer St., will host its second Museum Shop First Friday open house from 4 to 7 p.m. Friday at the Wagner House annex and garden, 222 Mercer St. On June 11, the museum will present its annual Herb & Garden Fair at the 1805 Barn Annex along with a Fiber Festival in Stewart Hall, both from 9 a.m. to 3 p.m. Call 724-452-7341 or visit harmonymuseum.org.REGIONDrake Well Museum, 202 Museum Lane, Titusville, has a new 10,000-square-foot exhibit gallery on the birth of the oil and gas industry. Hours are 9 a.m. to 5 p.m. Tuesdays through Saturdays and noon to 5 p.m. Sundays. Admission is $10 for adults, $8 for senior citizens, and $5 for children 3 to 11. Active military and their families are admitted free. Visit www.drakewell.org or call 814-827-2797.PITTSBURGHNational Aviary, 700 Arch St., presents the walk-through Butterfly Garden featuring a variety of native species in the outdoor Rose Garden daily from 11 a.m. to 4 p.m., weather permitting. Admission is $14 for adults, $13 for senior citizens and children 2 to 12. Visit aviary.org.ToonSeum, a museum of cartoon art, 945 Liberty Ave., presents “Captain America: 75 Years of the Sentinel of Liberty” through Aug. 14. Work by editorial cartoonists will be on display through Aug. 28. U.S. military personnel and veterans receive free admission. Admission is $8 for those 13 and older and $4 for children 6 to 12. Visit toonseum.org.Carnegie Science Center, North Side, in honor of the U.S. Open Championship being held in June at Oakmont Country Club, hosts the USGA’s “American Golf History — Coming to Life” through June 19. Hours are 10 a.m. to 7 p.m. Saturdays and 10 a.m. to 5 p.m. Sundays through Fridays. Admission is $18.95 for adults and $11.95 for children 3 to 12. Visit CarnegieScienceCenter.org.Heinz History Center, 1212 Smallman St., presents “Toys of the ’50s, ’60s and ’70s.” Admission is $16 for adults, $14 for senior citizens, and $6.50 for children 6 to 17. Hours are 10 a.m. to 5 p.m. daily. Visit www.heinzhistorycenter.org.