COUNTY

Maridon Museum, 322 N. McKean St., is open 11 a.m. to 4 p.m. Wednesdays through Saturdays, except holidays. Museum admission is $4 for adults, $3 for senior citizens and students, and free for children younger than 8 accompanied by an adult. Guided tours are available with advance notice for no extra charge. Call 724-282-0123 or visit www.maridon.org.

Harmony Museum, 218 Mercer St., Harmony, tours include the 1809 main museum building and wine cellar and a neighboring early 19th century house, both built by the communal Harmony Society, and a Mennonite log house, offered from 1 to 4 p.m. daily, except when the museum is closed Mondays and major holidays. Admission is $7 for adults, $6 for senior citizens age 60 and older, and $3 for youths ages 6 to 17. Call 724-452-7341.

REGION

Oil Region Alliance, 217 Elm St., Oil City, has scheduled a Tea at the Tarbell House program called “100 Years of Aprons, 1899-1999” at 2 p.m. Monday, as presented by Cheryl Weiderspahn, local historian and author, and a free open house at the Coal Oil Johnny House at Rynd Farm, 167 Old Bankson Road, inside Oil Creek State Park, from 11 a.m. to 3 p.m. Wednesday. Call 800-483-6264, Ext. 110.

PITTSBURGH

Fort Pitt Museum in Point State Park, part of the Smithsonian-affiliated Senator John Heinz History Center museum system, will host its fourth annual Women’s History Seminar on July 28. A Fort Pitt Garrison Drill is planned at 1 p.m. Aug. 18, featuring a demonstration of the 18th century military drills and firing of the museum’s replica British six-pounder cannon, weather permitting. Museum admission is $8 for adults, $7 for senior citizens, $2 off admission for retired and active military, and $4.50 for students with a valid ID and children ages 6-17. The museum is open from 10 a.m. to 5 p.m. daily, except holidays. Call 412-454-6415 or visit www.heinzhistorycenter.org.

Children’s Museum, 10 Children’s Way, Allegheny Square, presents “Thomas & Friends: Explore the Rails” through Sept. 9 and “The Pigeon Comes to Pittsburgh: A Mo Willems Exhibit” through Sept. 2. Regular museum hours are 10 a.m. to 5 p.m. daily, except holidays. Admission is $16 for adults and $14 for children ages 2 to 18 and senior citizens. Children younger than 2 are admitted free. Call 412-322-5058 or visit www.pittsburghkids.org.

Carnegie Science Center on the North Side hosts the Lego exhibit “The Art of the Brick” through Jan. 7. Because of the popularity of this exhibit, timed entrances will be offered every 15 minutes. Behind-the-scenes tours of the USS Requin take visitors into areas of the Cold War-era submarine rarely seen by the general public. These tours are scheduled for 9 to 11 a.m. July 29, Aug. 12 and 26, and Sept. 9. Tour participants must be 15 or older; cost is $20 and registration is required in advance. Science 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 ages 3 to 12; films are extra. Call 412-237-3400 or visit CarnegieScienceCenter.org.