Take a look inside a historic 54-room Gilded Age mansion that belonged to one of America's richest families

Source: Business Insider

A study in the Vanderbilt mansion. Talia Lakritz/Business InsiderThe Vanderbilt Mansion in Hyde Park, New York, was built by Frederick Vanderbilt in the 1890s. The 45,000-square-foot Gilded Age mansion is located on 153 acres of land in the Hudson Valley.