Wharton, who won a Pulitzer for her novel The Age of Innocence, was singularly equipped to write that deftly detailed examination of the upper classes of the Gilded Age and the first decades of the 20th century. She was born into that stratum of society in 1862 and traveled in the circles that made the Berkshires a regular stop on their restless movements between New York, Florida, Newport, and the Continent. Wharton had her villa built on this 130-acre lakeside property in 1902 and lived here 10 years before leaving for France, never to return. She took an active hand in the creation of The Mount, which makes the mansion a notable rarity -- it's one of the few designated National Historic Landmarks designed by a woman. In February 2008, however, management announced that The Mount was in danger of being put in foreclosure and launched a "Save the Mount" campaign. Call or check the website for the most up-to-date information.