Maridon Museum, 322 N. McKean St., is open from 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 advanced notice for no extra charge. Call 724-282-0123 or visit www.maridon.org.

Harmony Museum, 218 Mercer St., Harmony, offers tours that 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.

Oil Creek and Titusville Railroad offers a three-hour round-trip train ride including the history of the oil region and views of Oil Creek State Park on Saturday and Sunday, leaving at 11 a.m. For tickets or more information, call at 814-676-1733 or visit www.octrr.org.

Fort Pitt Museum in Point State Park, built in a recreated bastion of the British fort originally constructed in 1759, offers Throwback Admission of 50 cents for adults and 25 cents for children ages 6 to 17 on Sunday. Those are the original admission prices charged when the museum opened on June 30, 1969. Call 412-454-6415 or visit www.heinzhistorycenter.org/fort-pitt.Phipps Conservatory and Botanical Gardens, continues the Summer Flower Show “Van Gogh in Bloom,” featuring the artistry of Vincent van Gogh with botanical renderings of the artist’s iconic works in vibrant detail including “Starry Night,” “Sunflowers,” and “Wheat Field with Cypresses.” Phipps is open from 9:30 a.m. to 5 p.m. daily. Admission is $17.95 for adults, $16.95 for senior citizens age 62 and older and students, and $11.95 for children ages 2 to 18. Call 412-622-6914 or visit phipps.conservatory.org.Heinz History Center, 1212 Smallman St., will present its first-ever German Genealogy Workshop beginning at 9 a.m. Sunday; registration is $40. Vietnam War veteran and legendary Pittsburgh Steelers running back Rocky Bleier for an evening program at 7 p.m. July 8. Continuing is the exhibit “The Vietnam War: 1945-1975.” History center hours are 10 a.m. to 5 p.m. daily, except holidays. Admission is $18 for adults, $15 for senior citizens age 62 and older, $9 for students and children age 6 to 17, and free for children age 5 and younger. Active duty and retired military receive $2 off admission. Call 412-454-6000.National Aviary, 700 Arch St., hosts a new exhibit Living Dinosaurs, providing visuals and a wide array of hands-on learning opportunities highlighting traits that birds and dinosaurs share. Activities are included in regular admission, which is $17 for adults and $16 for senior citizens and children ages 2 to 12. Living Dinosaurs will run through Sept. 29. The aviary is open daily from 10 a.m. to 5 p.m. Call 412-323-7235 or visit www.aviary.org.Carnegie Science Center on the North Side features “Da Vinci The Exhibition” through Sept. 2 (which has its own admission price). Science center hours are 10 a.m. to 5 p.m. General admission is $19.95 for adults, $14.95 for senior citizens and $11.95 for children; some activities are extra. Call 412-237-3400 or visit CarnegieScienceCenter.org.Children’s Museum, 10 Children’s Way, Allegheny Square, has opened “Curious George: Let’s Get Curious!” and “Very Eric Carle.” Museum Lab, a new exhibit for children age 10 and older includes Studio Lab, Make Lab and Tech Lab. Regular 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.