This 3D model was originally created with Sketchup 13 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 This model was harder to make than it appears... But only because it was a federal crime to take pictures of this building. After some convincing, the Department of Homeland Security Officials understood that I was not doing reconnaissance, and they cleared my pictures and let me go...