Had one of Tomorrowland's flying saucers gone missing? When the Anaheim Convention Center's arena opened in the summer of 1967, it looked as if a spacecraft from another world had touched down directly opposite Katella Avenue from Disneyland.
Designed by Los Angeles-based architects Adrian Wilson and Associates, the Space Age arena cut a striking figure. Two 200-ton steel arches held up its concrete shell dome. When viewed from the proper angle, the arches seemed to spell out the letter "A." Inside, project architect Craig Bullock boasted, the circular arrangement of the auditorium around an elliptical floor plan provided more intimate views from the 9,100 olive green, tan, and orange plastic seats.