Update: You can download Blender 2.80 EEVEE version, too
File 2: Building7Cycles.blend
Made with blender 2.79, cycles 2.79 render
As internal accessories, you can only find the stairs between the different floors, and 2 elevators
There are three floors an rooftop.
Objects are divided by layers.
Verts: 190.000 - Faces: 170.000 - Object: 53