COUNTY

Maridon Museum, 322 N. McKean St., will have a Harvest Moon celebration from 5:30 to 11 p.m. Sept. 28 at the Butler Country Club. Dinner, dancing and a performance by Yanlai Dance Academy are planned. Music will be provided by the TMG Big Band. Doors open at 5:30 p.m. followed by hors d’oeuvres at 6 p.m. and dinner stations starting at 7 p.m. Tickets are $100 if purchased by Monday. Tickets at the door will be $125. Black tie is optional. Call 724-282-0123.

Harmony Museum, 218 Mercer St., will host its antique show and sale from 10 a.m. to 5 p.m. Saturday and 10 a.m. to 3 p.m. Sunday at the barn. Admission is $5. Call 724-452-7341.

PITTSBURGH

Fort Pitt Museum, Point State Park, has extended its “From Maps to Mermaids: Carved Powder Horns in Early America” exhibition through year end. It showcases delicately carved powder horns and explores the stories behind them. Museum admission is $8 for adults, $7 for senior citizens, $2 off for military, and $4.50 for children 6-17. Hours are 10 a.m. to 5 p.m. daily. Call 412-454-6415.

Heinz History Center, 1212 Smallman St., will host the exhibition, “Destination Moon: The Apollo 11 Mission,” starting Sept. 29. The traveling exhibition explores the space race and Apollo 11 mission. The exhibit includes the command module Columbia, the only portion of the spacecraft to complete the first mission. The exhibit will also showcase how Pittsburgh innovators and companies played a role in the success of the Apollo program. For tickets, call 412-454-6000.

Carnegie Science Center, North Side, hosts the Lego exhibit “The Art of the Brick” through Jan. 7. Center hours are 10 a.m. to 5 p.m. Some movies and shows are later. Admission is $18.95 for adults and $11.95 for children 3 to 12; films are extra. Call 412-237-3400.