A page devoted to the attraction quotes the promo material:

The world's most powerful searchlight beam rises from the center of this unusual building, whose exterior walls consist of 600 aluminum prisms fitted together to form an eye-catching pattern. Sponsored by investor-owned electric utility companies throughout the nation, the building is entered by a moving ramp that carries visitors over a reflecting pool and deposits them on a giant turntable.

Where a needle descends to the screams of the terrifed fairgoers, who desperately seek for an exit!