Management of the Silver Dollar City theme park in Branson has announced plans to build a new theme park in the tourist mecca. Celebration City will highlight life-changing events of the 20th Century America. The project,which comes with a $40-Million price tag, would open next spring if all goes as planned. Celebration City would include a 10-story wooden roller coaster and would also feature other rides, games, restaurants, shows, and anoutdoor laser show.