Second floor The second floor is accessed by the cantilevered Grand Staircase of 107 steps spiraling around a four-story, wrought-iron chandelier holding 72 light bulbs. The second-floor Living Hall is an extension of the grand staircase as a formal hall and portrait gallery, and was restored to its original configuration in 2013. Several large-scale masterpieces are displayed in the hall, including two John Singer Sargent portraits of Biltmore's architect, Richard Morris Hunt, and landscaper, Frederick Law Olmsted, both commissioned for the home by Vanderbilt. Located nearby in the south tower is George Vanderbilt's gilded bedroom with furniture designed by Hunt. His bedroom connects to his wife's Louis XV-style, oval-shaped bedroom in the north tower through a Jacobean carved oak paneled sitting room with an intricate ceiling. The suite of rooms includes: the Damask Room, with silk damask draperies and distinct damask-style wallpaper; the Claude Room, named after one of Vanderbilt's favorite artists, Claude Lorrain; the Tyrolean Chimney Room, featuring an overmantel made from a , a type of tile oven that stored large amounts of heat, then released it slowly over a long period; and the Louis XV Room, the most grand, so named due to its architectural scheme and furnishings that were very popular in the late nineteenth century. The suite was restored and opened to the public for the first time in 100 years in 2011. Third and fourth floors The third floor has a number of guest rooms with names that describe the furnishing or artist that they were decorated with. The fourth floor has 21 bedrooms that were inhabited by housemaids, laundresses, and other female servants. Also included on the fourth floor is an Observatory with a circular staircase that leads to a wrought iron balcony with doorways to the rooftop where Vanderbilt could view his estate. Male servants were not housed here, however, but instead resided in rooms above the stable and complex. Bachelors' wing The Billiard Room is decorated with an ornamental plaster ceiling and rich oak paneling and was equipped with both a custom-made pool table and a carom table (table without pockets). The room was mainly frequented by men, but ladies were welcome to enter as well. Secret door panels on either side of the fireplace led to the private quarters of the Bachelors' Wing where female guests and staff members were not allowed. The wing includes the Smoking Room, which was