An expansive and open-plan duplex penthouse on the top two floors of a charming 1871 brick Mansard row house. Ideally located on a one-way tree-lined residential side street close to Central, Harvard, & Inman Squares, and the Red Line connecting in just a few minutes to MIT, MGH & downtown Boston. Dramatic 31' living/dining room with high ceilings, oversized windows, and a glamorous eat-in kitchen with stainless-steel appliances, beautiful stone countertops, excellent cabinet storage, and a large center island ideal for informal dining. Generous principal bedroom, tiled bathroom with ample natural light, and second good-size bedroom with access to a large private tree-top roof deck with delightful panoramic Cambridge views. Less than a half-mile from Sennott Park, Whole Foods, City Hall, scores of restaurants, shops, and services. Bike storage available in the shared basement storage. Rare tucked-away offering at the center of everything.