Biltmore has four acres of floor space and a total of 250 rooms in the house including 33 bedrooms for family and guests, 43 bathrooms, 65 fireplaces, three kitchens and 19th-century novelties such as electric elevators, forced-air heating, centrally controlled clocks, fire alarms, and a call-bell system [REF].
The second floor is accessed by the cantilevered Grand Staircase of 102 steps spiraling around a four-story, wrought-iron chandelier holding 72 light bulbs [REF].