The veneer of Grand Central Terminal began to fade around the 1970s, as a result of rising property prices and lacking quality and maintenance. Threatened by renovations that would have torn apart significant portions of the Terminal, and would have sent it the way of the original Penn Station, Grand Central was saved with the help of Jacqueline Kennedy Onassis, who led a successful movement to have it designated as a National Historic Landmark. Later, in 1996, construction began on a massive revitalization project and concluded two years later, which helped to restore the luster to Grand Central Terminal.