If you weren't impressed with the $30 million loft apartment we showed you before, here's a penthouse that costs $15 million more… The Skyloft Penthouse in Tribeca, NYC, is just under 7,500 square foot and features an all-glass exterior designed by James Carpenter Design Associates and interior architecture and design by Rogers Marvel Architects. Inside the apartment, situated at the top of a 1929 Art Deco building, you'll find four bedrooms, four and half bathrooms and a 4,500 square foot outdoor terrace. All in all, not bad.