Listed at $190 million, Greenwich estate is priciest home in the US

Single-family home is rather a misnomer for this estate, as it consists of so much more than just the home itself- a 13,519 square foot French-renaissance mansion with 12 bedrooms, seven full baths, two half baths, library, solarium, wine cellar and entire floor for staff.  Special features include 12-foot ceilings, multiple carved fireplaces and balconies, plus huge windows and glassed-in porches for taking in the panoramic Long Island Sound view... Listed at $190 million, Greenwich estate is priciest home in the US | On The Block | an SFGate.com blog