My school UAA(Üsküdar Amerikan Academy) gave students a poster project. I changed it a bit and I made a 3d model of Galata Bridge in one day (3d prints are included). Only downloaded things are the ships. I designed it with SolidWorks and I printed it with @MakerBot 5th gen replicator. As an information I am just 14 years old and I passed CSWA exam when I was 13.