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.

<B>ToonSeum</B>, Pittsburgh's Museum of Cartoon Art, 945 Liberty Ave., will host "Let Her Be A Sweet Thing" with Vanessa German performing a new piece inspired by women of the civil rights movement at 6:30 p.m. today and Friday. This performance is presented in conjunction with the new exhibition, "Civil Rights Superheroes: Martin Luther King and the Montgomery Story." The exhibit, which continues through March 14, 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.<B>Carnegie Science Center</B>, One Allegheny Ave., North Side, hosts StormFest, a hands-on, interactive educational festival of the Earth sciences on Friday and Saturday. Presented in partnership with California (Pa.) University, StormFest explores the science behind weather and other natural phenomena. 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. Regular 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.<B>Heinz History Center</B>, 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. The exhibition 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. 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.<B>Carnegie Museum of Natural History</B>, 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. Call 412-622-3131 or visit the Web site, www.carnegiemnh.org.<B>National Aviary</B>, 700 Arch St., has winter hours 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 2 to 12; and free for children younger than 2. Call 412-323-7235 or visit the Web site, www.aviary.org.