This grand old world mansion is located at 5801 E Quartz Road in Paradise Valley, AZ. It is still being constructed and work will finish in early 2010. The 5 bedroom, 8 bathroom home is listed for $13,500,000 and contains over 15,000 square feet of living space. Oh and get this….it has a marble staircase!! The double bridal staircase faces the opposite way as you enter the home. It has beautiful hand carved wrought iron railings, marble steps, and a marble inlay. This is one of the best staircases/foyers I’ve ever seen!! I’m in love =). What do you guys think?

Here are the rest of the listing details:

Nestled in the exclusive enclave of La Place Du Sommet on the southeast slope of Mummy Mountain, this architecturally significant Old World design is a masterpiece. Panoramic views including Four Peaks, the McDowells, the Superstitions; the lights of Scottsdale is the background for this magnificent 15,000+sf estate! Chiseled cantera stone and exquisite millwork set the state for this five bedroom, eight bath residence featuring music room, library, theatre & game room, wine room. The gourmet kitchen opens to the spacious family room and the art gallery flows into the lovely guest house. Enjoy year-round swimming with indoor pool/spa. 6-car garage.