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 younger than 8 accompanied by an adult. Call 724-282-0123 or visit www.maridon.org.

Children’s Museum, Allegheny Square, will open “Very Eric Carle” on Saturday. Museum Lab is a new exhibit for children 10 and older that includes Studio Lab, Make Lab and Tech Lab. The museum will be closed Memorial Day. Regular hours are 10 a.m. to 5 p.m. daily, except holidays. Admission is $16 for adults and $14 for children 2 to 18 and senior citizens. Call 412-322-5058 or visit www.pittsburghkids.org.Phipps Conservatory and Botanical Gardens, 700 Frank Curto Drive, for the Summer Flower Show has “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 9:30 a.m. to 5 p.m. daily. Admission is $17.95 for adults, $16.95 for senior citizens and students, and $11.95 for children 2 to 18. Call 412-622-6914.National Aviary, 700 Arch St., hosts a live streaming nest cam for a pair of Andean Condors, which produced one egg expected to hatch between June 6 and 9, at http://aviary.org/condor-nest-cam.Carnegie Science Center, North Side, features “Da Vinci The Exhibition” through Sept. 2 (which has its own admission price). 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. Call 412-237-3400.