Hi snialle31! We have made a couple of large LEGO creations in the University. One is actually a scale model of a real particle physics detector called ATLAS which is at the Large Hadron Collider at CERN, so it is definitely for educational purposes 🙂 The Death Star was more just for fun. However, when I was younger I used to love making LEGO models and my room was always full of different creations. I especially liked the LEGO-technic range.