Towers! These, dear friend, are among the structures that have marked me the most during my many trips. Watchtowers, defense towers, towers for observation or for relaying the most elaborate signals, they are everywhere, in all cultures. From Europe to the mountains of the Far East, I was able to visit a number of them. Of course, you know me, I have put aside a few objects gleaned here and there, which a few reckless may have left unattended ... I hid some in the last tower. Get there, and they are yours. I challenge you to find all these places from the drawings I made. I deliberately did not classify them according to a geographical logic (we go back and forth between Asia and Europe!), but rather by difficulty. Ben Gunn.