A free train show is being shown through Jan. 2 at Thorncreek United Methodist Church, 142 Rockdale Road. Hours are 5 to 8 p.m. Friday and noon to 8 p.m. Saturdays and Sundays. The show will be closed Dec. 24, 25, 31 and Jan. 1. Call 724-352-4890.

Harmony Museum on Mercer Street in Harmony, representing the town founded in 1804 by pacifist German Lutheran Separatists and their Harmony Society, features the Yobp-Eckstein village and train-trolley display in the Wagner House annex during regular guided museum tours, which are 1 to 4 p.m. daily except Mondays and holidays. Reservations are suggested for weekends and required for groups. Call 724-452-7341 or 888-821-4822, or visit www.harmonymuseum.org.

<B>Phipps Conservatory and Botanical Gardens</B>, One Schenley Park, is presenting its Winter Flower Show through Jan. 9. Nine of Phipps indoor gardens will transform to tell the tale of holidays past, present and future with topiary snowmen made of white Alyssum, hanging baskets, evergreens lit with tens of thousands of LED lights, three G scale trains and close to 2,000 poinsettias. Phipps is open daily from 9:30 a.m. to 5 p.m. and Fridays until 10 p.m. 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; and free for children younger than 2. Call 412-622-6914 or visit the website, www.phipps.conservatory.org.<B>Heinz History Center</B>, 1212 Smallman St., hosts the exhibit”Vatican Splendors: A Journey through Faith and Art” containing original works by Michelangelo, Bernini and Giotto in the largest Vatican exhibit ever to visit North America, through Jan. 9. Tickets are $20 for adults, $17 for senior citizens and students with college ID, and $13 for children ages 6 to 13: children age 5 and younger are admitted free. Tickets are available online at www.ticketmaster.com, or by calling 888-588-4226.<B>National Aviary</B>, 700 Arch St., will host Breakfast with Santa at 8:30 p.m. Saturday; cost is $20 and includes admission to the Aviary. A Holiday Bird Show takes place at 11 a.m. and 1:30 p.m. daily through 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 are 10 a.m. to 5 p.m. every day except Christmas Eve and Christmas Day when the museum is closed. Call 412-323-7235 or visit www.aviary.org.<B>ToonSeum</B>, Pittsburgh’s Museum of Cartoon Art at 945 Liberty Ave., will screen three animated holiday movies, “A Charlie Brown Christmas” from 1965, “A Wish For Wings That Work” from 1991 and “The Nightmare Before Christmas” from 1993, starting at 6:30 p.m. Wednesday. Admission is $5. All features are recommended for all ages, though adult themes run through each. 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; closed holidays. Museum 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>Carnegie Science Center </B>next to Heinz Field on the North Side presents The Miniature Railroad and Village exhibit. 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’ home games and the holidays as follows: closed Sunday and Dec. 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.<B>Children’s Museum</B>, 10 Children’s Way, Allegheny Square, is conducting a Mister Rogers Sweater Drive through Friday. The exhibit “Whoosh!” featuring a Whirlwind Room, cockpit of an old-school airplane, rockets and bubbles, continues through May 29. “Tough Art” continues through Jan. 16. The museum will be closed Dec. 25 and Jan. 1. 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 www.pittsburghkids.org.<B>Carnegie Museum of Natural History, </B>4400 Forbes Ave. in Oakland, is showing the Italian Nativity called Neapolitan Presepio and holiday-themed trees in addition to its usual fare of dinosaur bones and gems. 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 with ID and children ages 3 to 18, and free for members and children younger than 3. Call 412-622-3131 or visit the website, www.carnegiemnh.org.