Mary Beard has been to see the Louvre exhibition and recommends that we do the same, even though the one and only undoubted original isn't there. (Come to think of it, I've seen the Hermes doubted – and I've just referred back to Mary's blog and see she says so too.)
Read her blog here, and take note of her useful practical advice:
Praxitèle runs till the summer and is really worth a visit. You can book tickets on-line which lets you go into the museum by the little entrance in the Passage Richelieu, off the rue de Rivoli – and so avoid the queues of Da Vinci Code fans and others entering via the main pyramid entrance.