Freeport Renaissance Association will host Freeport’s Fabulous Fall Fudge Festival from 11 a.m. to 3 p.m. Saturday in the downtown business district. Guests can sample different types of fudge at each of 20 locations. Fudge also will be available for sale by the half-pound or pound. Tickets are $9 in advance or $10 the day of the event. Call 724-295-2041 or 724-353-8694.

Butler County Civil War Roundtable will sponsor its third annual Downtown Butler Ghost Walk at 7:30 p.m. Friday and Saturday as well as Oct. 25 and 26. This 60-minute event will begin in Diamond Park. The guided tour will include Diamond Park and the adjacent Main Street business district. Ghost stories from Butler’s past to be discussed include Sam Mohawk, the Biddle Boys/Mrs. Soffel, the Headless Man, Chinese Laundry Murder, and the Phantom Civil War Regiment. All children under 18 must be accompanied by an adult. Cost is $10. Reservations are required by calling 724-256-9026.

Harmony Museum, 218 Mercer St., Harmony, offers guided tours from 1 to 4 p.m. daily except Mondays. Admission is $7 for adults, $6 for senior citizens, and $3 for youths ages 6 to 17. Call 724-452-7341 or visit www.harmonymuseum.org.

REGIONDrake Well Museum, 202 Museum Lane, Titusville, will be the site of “A gathering of Oil Historians — Present and Future” from 1 to 4 p.m. Oct. 26. Speakers will include Paul Adomites, editor of Oilfield Journal; Susan Beates, curator at Drake Well Museum and Park; Ihor Bemko, associate professor of history at Edinboro University; Michelle Gray, executive director of the Warren County Historical Society; and Melissa Mann, site administrator at Drake Well Museum and Park. Also invited are representatives from the Bradford, Butler County, Clarion County and Venango County historical societies as well as librarians and archivists from Oil City, Foxburg and the Barbara Morgan Harvey Oil Collection at Venango College, Clarion University. Admission is free and light refreshments will be provided. To reserve a spot, call 814-827-2797 or e-mail drakewell@verizon.com.

PITTSBURGHChildren’s Museum, 10 Children’s Way, Allegheny Square, opens TapeScape, a massive indoor landscape made of 360 rolls (that’s 22 miles!) of packing tape on Saturday. “Tough Art” continues through Dec. 31. 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.ToonSeum, Pittsburgh’s Museum of Cartoon Art at 945 Liberty Ave., celebrates Halloween with a Monster Blast for families from 1 to 3:30 p.m. Saturday. Children’s admission is $15 for nonmembers and $10 for members. Parents with children are admitted free. Tickets are available at www.showclix.com/event/MonsterBlast. ToonSeum presents comedian Louie Anderson at 7:30 p.m. Tuesday. Call 412-232-0199 or visit www.toonseum.org.Phipps Conservatory and Botanical Gardens, 1 Schenley Park, presents the fall flower show from Saturday through Nov. 10. Farmers at Phipps runs from 2:30 to 6:30 p.m. Wednesdays through October. Conservatory hours are 9:30 a.m. to 5 p.m. daily and until 10 p.m. Fridays. Conservatory 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., hosts “Poptastic!” focusing on Pittsburgh artist Burton Morris through Feb. 23. Center admission of $15 for adults, $13 for senior citizens, and $6 for students and children ages 6 to 17. Call 412-454-6000 or visit www.heinzhistorycenter.org. “Pennsylvania’s Civil War” continues through Jan. 5.National Aviary, 700 Arch St., hosts the interactive show “Beaks!” daily at 11 a.m. and 3 p.m. through Jan. 1. 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. Aviary hours are 10 a.m. to 5 p.m. daily. Call 412-323-7235 or visit www.aviary.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. Thursdays is discounted. Call 412-622-3131 or visit www.carnegiemnh.org.