Photoshop time!

 Basic look of both layers of the elevated path ways.

The final geometry of a single section. Lower level would have the floor area simply duplicated.  -  Got it all UVed and it's ready to be textured! Next is to create said texture in Photoshop. (Oh wait, baking in Topogun first) Damn it, now that I thinking of it, I wanted to add fancy light strips along the column for some futuristic illumination. *Sigh* No artist can ever truly finish something. If it wasn't for managers and publishers, there would be no finished video games, music, art, etc

Said UVs.  -  UVs are how the computer knows what texture (image) to display on specific parts of the geometry (3D shapes). For example, the top rectangles are the UVs for the large center column below the main platform. If I was to fill the long rectangles with a color, like blue, the column in 3D would be displayed blue. Though, it is usually a bit more detailed/complicated then solid blue.