MANHATTAN, Kan. (AP) — A center that chronicles the science and cultural history of the Flint Hills is opening its doors to visitors next weekend in Manhattan. An opening ceremony is planned for next Saturday at the $24.5 million, 35,000-square-foot Flint Hills Discovery Center. First-floor exhibits focus on topics such as the origin of the Flint Hills, cowboys and ranching, railroad communities, burning of the prairie, Plains Indians and the prairie ecosystem. Visitors also can visit the theater and watch a 15-minute film about the Flint Hills. Center spokeswoman Jaclyn Collins says the second floor contains temporary and traveling exhibit spaces. There's also a "family fun zone" with interactive stations, arts and crafts and a toddler area. The third floor features an outdoor terrace, classrooms and offices.