Unlike Elvis, Leonardo da Vinci's portrait of "Ginevra de Benci" (circa 1474-1478), at the National Gallery of Art, never leaves the building. (Ailsa Mellon Bruce Fund)

Unlike Elvis, Leonardo da Vinci's portrait of "Ginevra de Benci" (circa 1474-1478), at the National Gallery of Art, never leaves the building. (Ailsa Mellon Bruce Fund)