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 website, www.harmonymuseum.org.

<B>Pittsburgh Children's Museum,</B> 10 Children's Way, Allegheny Square, hosts Burgh Blast from 7 to 11 p.m. Friday. Adults get to come out and play at this event featuring food and libations and music from the band No Bad Ju Ju, among other activities. Tickets are $50 in advance, $60 at the door. Visit www.pittsburghkids.org/tickets or call 412-322-5058 Ext. 241. On Saturday and Sunday during the daytime hours, visitors can create a handmade gift for Mother's Day. Regular hours are 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 older than 65 and children ages 2 to 18, and free for children younger than 2. Parking is $5 for non-members. Call 412-322-5058 or visit the website, www.pittsburghkids.org.<B>ToonSeum</B>, Pittsburgh's Museum of Cartoon Art at 945 Liberty Ave., hosts "The Art of AKIRA" opening Saturday and continuing through July 18. It focuses on the film by Katsuhiro Otomo. This is billed as the largest collection of AKIRA production art ever displayed and was culled from more than 10,000 pieces of original production art from the private collection of guest curator Joe Peacock. An opening party will be held from 7 to 10 p.m. Friday; tickets are $25 for nonmembers and free for ToonSeum members. Regular museum hours are 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. Museum admission is $4 for adults and $3 for children ages 5 to 17; children younger than 5 are admitted free. Visit the website, www.toonseum.org.<B>Phipps Conservatory and Botanical Gardens</B> in Schenley Park hosts the 74th annual May Market on Friday and Saturday. The summer flower show, "Gargoyles in the Garden," runs through Sept. 12. Also open now is the annual butterfly forest through Sept. 6. Phipps is open daily from 9:30 a.m. to 5 p.m. with extended hours until 10 p.m. Fridays. Admission is $12 for adults, $11 for senior citizens age 62 and older and students with valid ID, $9 for children ages 2 to 18. Call 412-622-6914 or visit phipps.conservatory.org.<B>Carnegie Science Center</B>, North Side, marks Nurses Week Monday through May 14. Onsite health education and blood pressure screenings will be offered. Nurses can enjoy a buy-one-get-one-free admission with ID. Regular admission is $17.95 for adults and $9.95 for children ages 3 to 12; admission is discounted for senior citizens on Tuesdays. Parking is $5. 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. Call 412-237-3400 or visit the website, 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 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. 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.