COUNTY

Harmony Museum, 218 Mercer St., will have its annual antique show and sale fundraiser from 10 a.m. to 5 p.m. Saturday and 11 a.m. to 4 p.m. Sunday at the Barn Museum annex, 303 Mercer Road. Admission is $5. A light lunch and refreshments will be available. Call 724-452-7341.

REGION

Drake Well Museum, 202 Museum Lane, Titusville, features a new 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.

Meadowcroft Rockshelter and Historic Village, Avella, Washington County, will host an American Indian Heritage Weekend from 10 a.m. to 5 p.m. Sept. 24 and 25. Visitors will see re-enactors as they demonstrate skills of everyday American Indian life. Admission is $14 for adults, $13 for senior citizens, and $6 for children 6 to 17. Visit www.heinzhistorycenter.org.

PITTSBURGH

Children’s Museum, 10 Children’s Way, Allegheny Square, opens “Tough Art” today and continues “Daniel Tiger’s Neighborhood: A Grr-ific Exhibit” through Jan. 17. Hours are 10 a.m. to 5 p.m. daily. Admission is $16 for adults and $14 for children 2 to 18 and senior citizens. Visit www.pittsburghkids.org.

Carnegie Museum of Natural History, 4400 Forbes Ave., Oakland, is open 10 a.m. to 5 p.m. Mondays and Wednesdays 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 3 to 18. Visit www.carnegiemnh.org.