An extraordinary legacy opportunity awaits at The Sunnyside Chateau, a private mansion in the heart of Newport's renowned Top-of-the-Hill neighborhood. This iconic offering, originally built by famed architect George C. Mason as his personal Gilded Age residence, has been meticulously restored throughout all four levels of pristine living space. The 9,115-square-foot historical masterpiece showcases fourteen working fireplaces, soaring ceilings, gleaming inlay floors, and rare premium wood finishes including American Chestnut, Mahogany, Butternut, Fir, and Oak. Expansive grounds on a corner lot along a private road feature an outdoor kitchen, patio, iconic three-story tower, and a charming Teak veranda for outdoor relaxation. The home offers unparalleled amenities, including a dry sauna, 300-bottle wine cellar, home theater, chef's kitchen, panic room/lounge, and smart technology throughout. This exceptional property presents the discerning buyer with immediate move-in readiness and a piece of famed architectural history. Property and opportunity details provided by seller or others; buyer to verify.