Harmony Museum on Mercer Street in Harmony will host a show and sale of antique, heritage and contemporary quilts and coverlets from 10 a.m. to 4 p.m. Saturday and 11 a.m. to 4 p.m. Sunday in Stewart Hall. Admission is $5, and proceeds support museum operations. Call 724-452-7341 or visit www.harmonymuseum.org.

Old Economy Village in Ambridge is open year-round so visitors can see what life was like for the Harmonists during winter. Enter at the visitors center, 270 16th St. Cost is $10 for adults ages 12 to 64, $9 for senior citizens, $6 for children ages 3 to 11, and free for active military personnel. Old Economy is open 10 a.m. to 5 p.m. Tuesdays through Saturdays and noon to 5 p.m. Sundays. Call 724-266-4500.

Phipps Conservatory and Botanical Gardens will open its spring flower show on Saturday. The theme this year is Frances Hodgson Burnett’s children’s classic, “The Secret Garden.” The show runs through April 7 and will be open from 9:30 a.m. to 5 p.m. daily and until 10 p.m. on Fridays. Admission is $15 for adults, $14 for senior citizens and students, and $11 for children ages 2 to 18. Call 412-622-6914 or visit phipps.conservatory.org.Heinz History Center, 1212 Smallman St., presents “1968: The Year That Rocked America.” Admission is $15 for adults, $13 for visitors age 62 and older, $10 for students and children ages 6 to 17, and free for children 5 and younger. Call 412-454-6000 or visit www.heinzhistorycenter.org.Children’s Museum, 10 Children’s Way, Allegheny Square, presents “Move with Art” through May 12. Hours are 10 a.m. to 5 p.m. daily. Admission is $13 for adults, $12 for children ages 2 to 18 and senior citizens, and free for children younger than 2. Call 412-322-5058 or visit www.pittsburghkids.org.Carnegie Science Center, North Side, presents Spaceplace, a permanent exhibit featuring a walk-in replica of the International Space Station. Center admission is $17.95 for adults and $11.95 for children ages 3 to 12. Call 412-237-3400 or visit CarnegieScienceCenter.org. Hours are 10 a.m. to 7 p.m. Saturdays and 10 a.m. to 5 p.m. Sundays through Fridays.