 A Lapidus-designed 1959 wing featured 210 rooms with projecting bay windows and his-and-her bathrooms, each with a dressing area.Following the construction of an elaborate indoor pool at Grossinger's, the original Concord pool was replaced by the Lapidus-design Bubble, which doubled as a solarium, as well as a large spa.The Concord attracted major entertainers who could fill the Imperial Room to standing room-only.