Most Beautiful 2013

Beautiful at Every Age

From Blake Lively and Katharine McPhee to Elle Macpherson and Mary Steenburgen, these stunners prove true beauty is timeless

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ELIZABETH MCGOVERN, 51

Twenty years after leaving Hollywood to build a life abroad with British director Simon Curtis and their two daughters, the actress has found a second wave of fame – and confidence! – with her hit series Downton Abbey. "I've just turned 50, and I feel sexier, happier, more interesting than I ever have before," she told U.K.'s Woman & Home last year.