[naviga:h3]COUNTY[/naviga:h3]

Butler County Historical Society’s Senator Walter Lowrie House Museum 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., Harmony, will host its 11th annual Antique Gun Show Aug. 8. Hours are 9 a.m. to 3 p.m. in Stewart Hall. Admission is $5, with proceeds benefiting museum operations. A light lunch will be available. Attendees can take items for experts to appraise. Call 724-452-7341.

Mars Shortline Railroad has tiny train rides available. As weather allows, adults and children can catch rides from 10 a.m. to 2 p.m. Fridays and 1 to 4 p.m. Saturdays through September at the Mars History and Landmark Society’s restored small scale B&O Train Station south of downtown at 1 Brickyard Road. Rides are free. Call 724-272-9588 or visit marshistory.org.

The Old Stone House will offer cooking classes. Bake oven classes are available Aug. 15 and Sept. 19. Open hearth cooking classes are Aug. 8, Sept. 12 and Oct. 10. Hours are 10 a.m. to 2 p.m. Cost is $35 each, with a two-week advance registration required. Visit http://oldstonehousepa.org/tasteofhistory. The Old Stone House, at the intersection of Routes 8, 528, and 173 in Brady Township, is owned and operated by Slippery Rock University.

[naviga:h3]REGION[/naviga:h3]

Meadowcroft Rockshelter and Historic Village, Avella, Washington County, is open noon to 5 p.m. Wednesdays through Saturdays and 1 to 5 p.m. Sundays. Admission is $12 for adults, $11 for senior citizens, and $6 for children ages 6 to 17. Call 724-587-3412.

[naviga:h3]PITTSBURGH[/naviga:h3]

Heinz History Center, 1212 Smallman St., hosts the We Can Do It! WWII exhibition. Center admission is $15 for adults, $13 for seniors, and $6 for children ages 6 to 17. Admission for active and retired veterans is $6. Visit www.heinzhistorycenter.org.

Children’s Museum, Allegheny Square, presents “Very Eric Carle: A Very Hungry, Quiet, Lonely, Clumsy, Busy Exhibit” through Sept. 20. Museum admission is $14 for adults and $13 for children ages 2 to 18 and senior citizens. Hours are 10 a.m. to 5 p.m. daily. Visit www.pittsburghkids.org.

Carnegie Museum of Natural History, 4400 Forbes Ave., Oakland, presents “Out of This World! Jewelry in the Space Age” and “Animal Secrets.” Hours are 10 a.m. to 5 p.m. Mondays through Saturdays with extended hours until 8 p.m. Thursdays and from noon to 5 p.m. Sundays. Admission is $19.95 for adults, $14.95 for senior citizens, and $11.95 for children ages 3 to 18. Visit www.carnegiemnh.org.

Fort Pitt Museum in Point State Park has opened the exhibit “Captured by Indians.” Hours are 10 a.m. to 5 p.m. daily. Admission is $6 for adults, $5 for senior citizens, and $3 for children ages 6 to 17, and retired and active veterans. Visit www.heinzhistorycenter.org.

Carnegie Science Center, North Side, hosts tours of the submarine USS Requin from 9 to 11 a.m. Aug. 9 and 23. Cost is $15 for members and $20 for nonmembers. Advance registration is required. Call 412-237-1637.