The park takes its theme from the Jules Verne book, Around the World in Eighty Days. Worlds of Fun is divided into eight major sections (Scandinavia, Africa, Europa, the Orient, Wild West, International Plaza, Planet Snoopy, and Americana). Rides, attractions, shops, shows, and restaurants are named according to the area theme. Guests enter the park in International Plaza. In 1997 the Americana "main entrance" was closed for the creation of Grand Prix, so the "back gate" became the "main gate" ever since. The next world to the left is Scandinavia, then Africa, continuing in a clockwise rotation, guests would then enter the Wild West section, then the Americana section, followed by the Orient. The Europa section is located in the approximate center of the circle. Behind the Wild West section, lies the section of Planet Snoopy (the area of the park specifically for young children). Originally added in 1978 as an expansion of Americana, over the years the grounds have changed its identity several times. Initially it was called "Aerodrome" (1978–86) with futuristic rides for adults, it then became a children's area called "Pandamonium!" (1987–97), then "Berenstain Bear Country" (1997–2000), and "Camp Snoopy" (2001–2010), and is currently "Planet Snoopy", new to the 2011 season. Past sub-sections have also included Bicentennial Square, River City, and Beat Street, which all have been absorbed back into Americana. Although there is no Australian/Oceanic section in the park, there is an Australian-themed Boomerang roller coaster; it is part of the section named Africa. Roller coasters Africa Americana Europa International Plaza Orient Planet Snoopy Scandinavia Wild West + Denotes an extra cost for the ride or attraction. * On August 11, 2022, Worlds of Fun announced the Zambezi Zinger II - a new steel and wooden hybrid roller coaster that will have the same location and thrill of the old Zambezi Zinger, but with updates to the design and safety of the ride. The scheduled opening of the Zambezi Zinger II is for the 2023 season, which is the 50th anniversary of the park. Former rides and attractions Roller coasters Schussboomer, (1973–1984), a ski-themed steel roller coaster with ten separate 4-passenger cars. Screamroller/Extremeroller , (1976–1988), the first stand-up roller coaster in the Western Hemisphere. Its only season as a stand-up coaster was in 1983, after which it was reverted to the original sit-down style. Zambezi Zinger, (1973–1997), a steel "Speedracer"-type roller coaster (one of only two