The walk is fixed on one documented day, 10 October 1517, and ends at Clos Lucé, where Leonardo spent his last years. On the way: a picture room with the Mona Lisa near real size, 29 anatomy sheets, and a hall of rebuilt machines you can set moving. Each stop carries a label for how sure the museum is: documented, reconstructed, conjectural or not known. Entry is free, and a pre-rendered walk covers older phones.