Harmony Museum on Mercer Street in Harmony is open from 1 to 4 p.m. daily; closed Mondays and holidays. Reservations are suggested for weekends and required for groups. Call 724-452-7341 or 888-821-4822, or visit the Web site, www.harmonymuseum.org.PITTSBURGH

National Aviary, 700 Arch St., will host "Hoots in the Night" from 11 a.m. to 2 p.m. Saturday and for St. Patrick's Day, a Green Bird Scavenger Hunt from 10 a.m. to 5 p.m. Wednesday. "Won't You Be My Neighbor? Day" from 10 a.m. to 5 p.m. March 19 will feature free admission. Pictures with the Easter Bunny will be available from 11 a.m. to 1 p.m. March 27 and April 3. Winter hours are from 10 a.m. to 5 p.m. Mondays through Saturdays and noon to 5 p.m. Sundays. Admission is $10 for adults; $9 for senior citizens; $8.50 for children ages 2 to 12; and free for children younger than 2. Call 412-323-7235 or visit the Web site, www.aviary.org.

Pittsburgh Children's Museum, 10 Children's Way, Allegheny Square, continues "Yinz Play!" through June 6. Celebrate all things Pittsburgh in this interactive exhibit where visitors can play with Pittsburghese, repair one of its renowned bridges, design their own fireworks display or help build a large-scale model of the city. The museum is open from 10 a.m. to 5 p.m. Mondays to Saturdays; and noon to 5 p.m. Sundays, except holidays. Admission is $11 for adults; $10 for senior citizens and children ages 2 to 18, and free for children younger than 2. Parking is $5 for nonmembers. Call 412-322-5058 or visit the Web site, www.pittsburghkids.org.

ToonSeum, Pittsburgh's Museum of Cartoon Art at 945 Liberty Ave., continues "Civil Rights Superheroes: Martin Luther King and the Montgomery Story" through Sunday. The exhibit examines the role of a comic book in the civil rights movement. The museum is open from 10 a.m. to 3 p.m. Wednesdays and Thursdays, 10 a.m. to 5 p.m. Fridays and Saturdays and 11 a.m. to 4 p.m. Sundays, except holidays. Admission is $4 for adults and $3 for children ages 5 to 17; children younger than 5 are admitted free. Visit the Web site, www.toonseum.org.

Heinz History Center, 1212 Smallman St., continues through July 18 "Discover the Real George Washington: New Views from Mount Vernon," an exhibition from George Washington's Mount Vernon Estate & Gardens. It features highlights from Mount Vernon's collection and provides a new perspective on Washington, his achievements and legacies, his family, and his intellectual pursuits and entrepreneurial ventures. Visitors can view nearly 100 objects, including full-scale figures of Washington, architectural models, decorative and fine art items, maps, manuscripts and paintings. Center hours are 10 a.m. to 5 p.m. daily, except holidays. Admission is $10 for adults, $9 for senior citizens age 62 and older, $5 for students with ID and for children ages 4 to 17, and free for children 3 and younger. Call 412-454-6000.

Carnegie Science Center, One Allegheny Ave., North Side, hosts "Did You Know? Nanotechnology Workshop," a featured program of spring SciTech Days through Friday. Center hours are 10 a.m. to 7 p.m. Fridays and Saturdays and 10 a.m. to 5 p.m. Sundays through Thursdays; closed holidays. Admission is $14 for adults and $10 for senior citizens age 62 and older and children 3 to 12. Parking is $5. Call 412-237-3400 or visit the Web site, www.carnegiesciencecenter.org.

Carnegie Museum of Natural History, 4400 Forbes Ave., Oakland, continues the traveling exhibition, "Whales/Tohora," through May 2. Museum hours are 10 a.m. to 5 p.m. Tuesdays through Saturdays, with additional hours until 8 p.m. Thursdays, and noon to 5 p.m. Sundays. Closed major holidays. Admission, which includes the Carnegie Museum of Art, is $15 for adults, $12 for senior citizens, and $11 for students and children age 3 and older, and free for members and children younger than 3. Free admission is offered from 3:30 to 8 p.m. Thursdays in March. Call 412-622-3131 or visit the Web site, www.carnegiemnh.org.