see what's new at projectluna.com ♪ it is the brick by brick craze that seems to be sweeping the nation. legos, which in a previous generation, were strictly the realm of the child geek. >> they're not dad's toy any more, or are they? john shows us the very grown-up artist who has taken the lego to a whole new level. >> reporter: the lego brick. simple. rectangular. 45.7 billion produced every year. >> these are the colors i need. >> reporter: now the star of the number one movie in the country "the lego movie" and part of the craze also, the artistic creations of one nathan sawaya. >> i've been playing with toys for ten years now. >> reporter: two amazing things. one is the works.