By day or by starlit night, the Mercer Island showplace stages a dynamic panorama to take your breath away. That was the goal of the couple who created the gated dreamhouse. Its excitement begins at a porte cochère introducing a stunning foyer designed for 100 guests. Beyond, view-filled formal rooms glow with stately fireplaces and travertine. A gigantic great room joined by a water-view veranda and leading to a lower wine cellar incorporates the kitchen and family room. Among the other favorite settings are a plush theatre, high-tech gymnasium, and the master suite—a heavenly oasis adorned with colossal his-and-her glass closets. Outdoors, magical beachfront lawns and a two-bedroom carriage house immortalize the Seattle skyline.