Harmony Museum on Mercer Street in Harmony, representing the town founded in 1804 by pacifist German Lutheran Separatists and their Harmony Society, 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>Heinz History Center</B>, 1212 Smallman St., will celebrate ethnic holiday traditions with the annual “Heritage Holidays Weekend” features live music and dancing, food samples, and hands-on activities from nearly 40 of Western Pennsylvania’s ethnic and heritage groups, including Irish, Italian, Carpatho-Rusyn, Filipino, African American, German, Lithuanian, Bulgarian, Indonesian, Native American, and Scottish ethnicities. Hours are 10 a.m. to 4 p.m. Saturday and 10 a.m. to 3 p.m. Sunday. This event is free with History Center admission, which 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. Separate admission tickets are required for the “Vatican Splendors” exhibition. Call 412-454-6000.<B>National Aviary</B>, 700 Arch St., will present a Holiday Bird Show at 11 a.m. and 1:30 p.m. daily from Nov. 26 to Jan. 2 immediately following “Wings!” in the Helen M. Schmidt FliteZone Theater. Aviary admission is $12 for adults, $11 for senior citizens, $9.50 for children ages 2 to 12, and free for those younger than 2. Winter hours begin Friday and are 10 a.m. to 5 p.m. every day except closed Thanksgiving, Christmas Eve and Christmas Day. Call 412-323-7235 or visit www.aviary.org.<B>ToonSeum</B>, Pittsburghs Museum of Cartoon Art at 945 Liberty Ave., features “The Art of Caroll Spinney,” a new exhibit that explores the the life one of the worlds best-loved puppeteers through his original paintings and sketches, through Jan. 30. Spinney is best known for his portrayal of Oscar the Grouch and Big Bird on “Sesame Street.”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. Admission is free throughout the month of November to veterans. Regular admission is $4 for adults and $3 for children ages 5 to 17; children younger than 5 are admitted free. Visit www.toonseum.org.<B>Children’s Museum</B>, 10 Childrens Way, Allegheny Square, which will be closed on Nov. 25, Thanksgiving Day, regularly features the exhibit “Whoosh!” featuring a Whirlwind Room, cockpit of an old-school airplane, rockets and bubbles, through May 29. “Tough Art” continues through Jan. 16. A Mister Rogers Sweater Drive is being conducted through Dec. 17. Museum hours are from 10 a.m. to 5 p.m. Mondays to Saturdays; and noon to 5 p.m. Sundays. 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 nonmembers. Call 412-322-5058 or visit the website www.pittsburghkids.org.<B>Carnegie Science Center </B>next to Heinz Field on the North Side will reopen the popular Miniature Railroad & Village exhibit for the holiday season on Saturday. New to the exhibit this year is a completely renovated scale replica of Lakemont Park’s Leap-The-Dips in Blair County. Regular science center hours are 10 a.m. to 5 p.m. Sundays through Fridays and 10 a.m. to 7 p.m. Saturdays. Hours will be limited for Steelers games and the holidays as follows: closed Sunday, Nov. 25; Dec. 12, 19 and 25. The center will close at 4 p.m. Dec. 23, 24 and 31, but will remain open until 7 p.m. Dec. 26 to 30. General admission is $17.95 for adults and $9.95 for children ages 3 to 12. Omnimax films are extra. Call 412-237-3400.