Designed for gracious living, this home offers a great space for grand scale entertaining. It showcases a spectacular penthouse mezzanine with 2 decks and striking views of the Boston skyline, Cambridge, MIT and the Charles River. With the highest quality design and meticulous craftsmanship, this home has the best in high-end materials. The private landscaped courtyard and the 8 fireplaces throughout offer intimate spaces to relax. Features include 4 bedrooms, 5 baths, 2 guest baths, a grand skylit vestibule, an elevator accessing all 6 levels, an eat-in kitchen with a wall of glass overlooking the garden and a catering kitchen. The 9,000-plus-square-foot home also offers a library, media room, au pair suite with a separate entrance and a luxurious master bath with spa steam shower. Also enjoy 2 garage spaces with 2 single exterior parking spaces. $8,850,000.