Harmony Museum, 218 Mercer St., Harmony, will have a German buffet dinner Saturday with seatings at 4:30 and 6:30 p.m. in Stewart Hall. Prepaid reservations are required. The museum offers guided tours from 1 to 4 p.m. daily except Mondays. Admission is $7 for adults, $6 for senior citizens, and $3 for youth ages 6 to 17. Call 724-452-7341 or visit www.harmonymuseum.org.

National Aviary, 700 Arch St., hosts “Beaks!” daily at 11 a.m. and 3 p.m. The show is $5 in addition to the regular cost of admission, which is $13 for adults, $12 for senior citizens, $11 for children ages 2 to 18, and free for children younger than 2. Hours are 10 a.m. to 5 p.m. daily. Call 412-323-7235 or visit www.aviary.org.Phipps Conservatory and Botanical Gardens, 1 Schenley Park, hosts Farmers at Phipps from 2:30 to 6:30 p.m. Wednesdays. The summer flower show: Glass in the Gardens, runs through Oct. 6. Conservatory hours are 9:30 a.m. to 5 p.m. daily and until 10 p.m. Fridays. Admission is $15 for adults, $14 for senior citizens and students, and $11 for children ages 2 to 18. Call 412-622-6914 or visit phipps.conservatory.org.Heinz History Center, 1212 Smallman St., presents “Pennsylvania’s Civil War” through Jan. 5. Admission is included with the regular center admission of $15 for adults, $13 for senior citizens, $6 for students and children ages 6 to 17, and free for children 5 and younger. Call 412-454-6000 or visit www.heinzhistorycenter.org.Children’s Museum, 10 Children’s Way, Allegheny Square, opens the exhibit “Ball” on Friday, featuring 500 beach balls, larger inflatable balls, a disco ball and music. “Tough Art” opens Sept. 19. Hours are 10 a.m. to 5 p.m. daily. Admission is $13 for adults, $12 for children ages 2 to 18 and senior citizens, and free for children younger than 2. Call 412-322-5058 or visit www.pittsburghkids.org.Carnegie Museum of Natural History, 4400 Forbes Ave., Oakland, presents “Roads of Arabia: Archaeology and History of the Kingdom of Saudi Arabia” through Nov. 3. Hours are 10 a.m. to 5 p.m. Tuesdays to Saturdays, with extended hours until 8 p.m. Thursdays, and noon to 5 p.m. Sundays. Admission is $17.95 for adults, $14.95 for senior citizens, and $11.95 for students and children ages 3 to 18. Admission after 4 p.m. on Thursdays is discounted. Call 412-622-3131 or by visiting www.carnegiemnh.org.