TRULY STUNNING RARE S/E CORNER PENTHOUSE IN THE RENOWNED MONTGOMERY BUILDING! 3 giant bedrooms (3rd bedroom currently set-up as office/library/guest suite), 3.5 bath, 4350+ square foot masterpiece. Our seller's parents custom designed and had built this stunning property with the discerning eye of an art collector! Created for grand entertaining, hosting family and friends, or enjoying tranquil moments alone together! Museum quality contemporary architectural details throughout. Unparalleled craftsmanship, Travertine floors and wall accents, top-of-the-line kitchen and bath features, custom lighting and sound systems with whole-house controllers. Majestic ceiling height and expansive floor to ceiling window walls on all sides, with breathtaking city and Lake views, complimented by automated shades (including separate blackout). Grand entry foyer, eat-in chef's kitchen alongside family area leading to balcony facing the Lake, magnificent open floorplan living-dining-family spaces, stately office/library (or 3rd bedroom), large ensuite secondary bedroom with views, and to-die-for master suite with views forever and resort style bath. Includes 2 deeded premium heated parking spots on the preferred direct access side of the building. Fabulous full amenity building includes private elevator access to the penthouse suites, superb 24 hour door staff & security, fitness center, dry cleaners, dog park, new terrace and roof deck, party room, in-unit package delivery, and luxurious lobby! Wonderful location - steps to North Michigan avenue, restaurants, shops, river walk, transportation, fun and so much more! CALL FOR PRIVATE SHOWING.