Why? I work for Walmart, which provides some context for my interest in it. With a profit margin of $420B, Walmart sells an average of $60 per year per person on earth. The average Walmart store is more architecturally central to urban form than is the average skyscraper.
Here is my first rendering. The floor plan is almost entirely complete at this point. My next step will be to lay out the parking lot and exterior details, finish some basic detail for service areas and the tire centre, and then focus on signage, color tones, and other more minor details.