Still, travel experts say the best fall experience in Missouri isn’t apple picking or pumpkin patches, it’s a scarecrow festival. What to Expect at Eureka’s Scarecrow FestivalThat’s right—a scarecrow festival. Each year, hundreds, if not thousands, of scarecrows line the streets of Eureka, Missouri (just outside of St. Louis). Spend the day at Six Flags, stay the night, and then head over to the Scarecrow Festival in Eureka. Inside The Haunted Lemp Mansion Caves Under St. Louis, Missouri Gallery Credit: grimmlifecollective via YouTube