Saxonburg Library, 240 W. Main St., Saxonburg, hosts C. William Davis III, author of “Forever Man,” “Tail of the Scorpion,” and “Return of the Forever Man” for a book signing from 7 to 8 p.m. Wednesday. “The Tail of the Scorpion” is set in Butler and Allegheny counties. Call 724-352-4810.

Harmony Museum, Mercer Street, Harmony, hosts a German buffet dinner at 4:30 and 6:30 p.m. Saturday in Stewart Hall, 218 Mercer St. The cost is $15, and proceeds benefit museum operations and maintenance. Prepaid reservations are required by calling 724-452-7341.

<B>Fort Ligonier,</B> Route 30 in Ligonier, opens for the season Friday. Hours are 10 a.m. to 4:30 p.m. Mondays through Saturdays and noon to 4:30 p.m. Sundays. (Closed on Easter Sunday.) Admission is $8 for adults, $5 for children ages 6 to 14, and free for children 5 and younger. Call 724-238-9701.

<B>Phipps Conservatory and Botanical Gardens</B> continues its spring flower show through April 24. The conservatory at One Schenley Park 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; and free for children younger than 2. Call 412-622-6914 or visit www.phipps.conservatory.org.<B>Children’s Museum</B>, 10 Children’s Way, Allegheny Square, hosts the exhibit “Whoosh! It’s All About Air” through May 29. Museum hours are 10 a.m. to 5 p.m. Mondays to Saturdays and noon to 5 p.m. Sundays. Admission is $11 for adults, $10 for children ages 2 to 18 and senior citizens, and free for children younger than 2. Parking is $5 for nonmembers or $3 for members. Call 412-322-5058 or visit www.pittsburghkids.org.<B>Carnegie Science Center, </B>North Side, has added three laser shows featuring music by The Doors & Hendrix, Radiohead and Creed in Buhl Digital Dome. Center hours are 10 a.m. to 5 p.m. Sundays through Fridays and 10 a.m. to 7 p.m. Saturdays. Admission is $17.95 for adults and $9.95 for children ages 3 to 12. Omnimax films are extra. Call 412-237-3400 or visit www.carnegiescience center.org.<B>Carnegie Museum of Natural History, </B>4400 Forbes Ave., Oakland, invites visitors to “Explore Evolution” through July 24. 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. 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 www.carnegiemnh.org.