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Maridon Museum, 322 N. McKean St., is open from 11 a.m. to 4 p.m. Wednesdays through Saturdays, except holidays. Guided tours are available with advanced 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. Museum 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.

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Children’s Museum, 10 Children’s Way, Allegheny Square, has opened the baseball-themed exhibit “Big League Fun” as well as the 13th annual “Tough Art” exhibition. The Children’s Museum is open 10 a.m. to 5 p.m. daily, except holidays. Admission varies by the day, but ranges from $13 to $16. Children younger than 2 are admitted free. Call 412-322-5058 or visit www.pittsburghkids.org.

Phipps Conservatory and Botanical Gardens, hosts a Tropical Forest Cuba Festival on Saturday. Family-fun activities are planned from 11 a.m. to 3 p.m. to celebrate the beauty and culture of Cuba. Sponsored in part by Duquesne University, Tropical Forest Cuba will show a collection of orchids, ferns and rare cycads, along with other exotic plant species as well as entertainment and food. All festival activities are free with Conservatory admission of $19.95 for adults, $17.95 for senior citizens age 62 and older and students with ID, and $11.95 for children ages 2 to 18. Call 412-622-6914 or visit phipps.conservatory.org.

National Aviary, 700 Arch St., hosts the Orchid and Tropical Bonsai Show: Out of This World through March 8. Aviary admission is $17 for adults and $16 for senior citizens age 60 and older and children. The aviary is open daily from 10 a.m. to 5 p.m. Call 412-323-7235 or visit www.aviary.org.