We are sorry that you did not appreciate, the only one guest, one of the projects that has gained many awards in terms of innovation and culture and only 5 stars. You are aware why you left 2 stars, also because we were warned by the staff on the same day of the experience that you would do it: the reason is due to YOUR mistake, you booked this experience thinking that the audio-guide was in French, although it was clearly stated in the description of the tour that the audio-guide was in Italian and English. Unfortunately, customers like you, who do not appreciate history and technology, due to their own booking error and pure revenge (your disinformation), discreet a project so appreciated nationally and internationally. Sincerely