This tour doesn’t take more than half a day and perhaps touches the most striking part of the city which, however, is at the same time the less accessible for disabled people. Anyway, it’s good to know that all the areas inside the Castle ( The Locomotive Square, Drawbridge and the Observatory) can be reached by car, provided you have the special permit: a little less suggestive but certainly safer and more comfortable (for you and any companion of yours…)