A rare opportunity to own an architecturally stunning Penthouse duplex in the coveted Whitehall building at The Waterworks Condominium complex! The open concept living area offers amazing light and scale with a dramatic staircase ascending to soaring skylit ceilings. An elegant arched window offers homage to the "Beaux Arts" grandeur of the building and leads to one of many private decks. The kitchen boasts granite countertops and Subzero, Wolf and Bosch appliances and opens to the living/dining areas which are separated by a floating stone fireplace. There are pristine hardwoods throughout. The second floor bedrooms, both ensuite with marble baths, each open onto a private deck. A spiral staircase leads to an additional 1300+ SF private roof deck with panoramic city & reservoir views. Amenities include a Resident's Lounge, fitness room, private storage & garage parking in a 20 unit elevator building with on-site management. Moments to BC, the CH Reservoir, MBTA and Boston.