Maridon Museum, 322 N. McKean St., will host a travel lecture on Uganda by Susan Linville at 6:30 p.m. Aug. 22. The Maridon is open 11 a.m. to 4 p.m. Wednesdays through Saturdays. Admission is $4 for adults, $3 for senior citizens and students, and free for children younger than 8, who must be accompanied by an adult. Guided tours are available with advance notice for no extra charge. Call 724-282-0123 or visit www.maridon.org.

Saxonburg Area Artists Cooperative, 215 Main St. rear, in Saxonburg, hosts “The Sisters Show,” featuring the artwork of Pam and Christine Palamidessi through Aug. 18. Admission is free. Gallery hours are 1 to 9 p.m. Fridays and 10 a.m. to 8 p.m. Saturdays, with other hours by arrangement or during events. Call 412-260-5779.

Bottlebrush: A Gallery for the Arts, 539 Main St., Harmony, presents Americana, folk and blues music by Tony Denikos of Baltimore at 7 p.m. Friday. Cost is $10 and reservations are necessary due to limited space. Call 724-452-0539.