Maridon Museum, 322 N. McKean St., 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 under 8 accompanied by an adult. Call 724-282-0123 or visit www.maridon.org.

Butler County Historical Society has its annual meeting with a program by Jason Cherry, local author and historian, June 11 at the YWCA, 120 W. Cunningham St. Dinner is at 5:45 p.m. followed by volunteer recognition and a program. RSVP by Tuesday by calling 724-283-8116. Cost is $20.

Children’s Museum, Allegheny Square, opens “Curious George: Let’s Get Curious!” with activities from 10 a.m. to 5 p.m. Saturday and Sunday. Continuing is “Very Eric Carle” and Museum Lab. 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. Call 412-322-5058.Fort Pitt Museum, Point State Park, focuses on the role Western Pennsylvania played during the French & Indian War, the American Revolution, and the founding of Pittsburgh. Call 412-454-6415.Phipps Conservatory and Botanical Gardens, 700 Frank Curto Drive, hosts the fourth annual BioBlitz Family Fun Festival from 9 a.m. to 4 p.m. Sunday on the front lawn, with guided nature tours. The event is free. Continuing is the summer flower show, “Van Gogh in Bloom,” featuring the artistry of Vincent van Gogh with botanical renderings of the artist’s iconic works including “Starry Night,” “Sunflowers,” and “Wheat Field with Cypresses.” Hours are 9:30 a.m. to 5 p.m. daily. Admission is $17.95 for adults, $16.95 for senior citizens, and $11.95 for children 2 to 18. Call 412-622-6914.