To participate in the Days of Oris means to live quite a unique experience during two days. The impressions are still fresh in my mind after I participated last year for the first time in this annual symposium, the Days of Oris 15. This is not a praise for someone who likes to point out that he regularly follows the developments in contemporary architecture. But – better late than never. And as I write these lines I feel again that special atmosphere that seizes you when entering the impressive Lisinski Hall in Zagreb. You immediately feel the energy of some thousand or fifteen hundred, mostly young architects, who like every year, await the first lecturer with somewhat noisy impatience.