The following year, the County Fair area with its games of skill was added. Also in 1979, Adventureland purchased the aging Riverview Amusement Park in Des Moines and moved some of the attractions to their own themed area just south of the park in 1980. Some of these attractions included the infamous weight guessing booth, Hi-striker game (now in storage at Adventureland), Haunted House ride (used as the station for the defunct Dragon roller coaster), Mirror/Funny Maze (found upon exiting the Dragon roller coaster ride at Adventureland), Skee-Ball games, the Riverview carousel, as well as other well-known and loved attractions. In 1990, the Riverview theme area was transformed into the Dragon Island, home of Adventureland's double-looping upside-down steel roller coaster, which opened on May 12, 1990.