This 3D model was originally created with Sketchup 8 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 is based on a model that I made a long time ago. There is a short maze, a long maze, a crawl thru maze, and several doors do not go anywhere. Also 2 circular mazes. Direction arrows are inside plus a security guard. Inside is colour coded. Red means dead end, for instance. Turn off shadows b4 you go thu it.