While I agree, it's not immediately obvious these are Apple buildings. The buildings outside the main campus are dull 1980s style offices and the only hint they're Apple is the small emblem hidden on the side of the building. If you are driving down the street it can be difficult to tell.
For example, 19925 Stevens Creek Blvd is an Apple building but there's no way of knowing that unless you spot the small white apple emblem next to the driveway. Otherwise it looks just like a regular office building.
https://www.google.com/maps/@37.3230321,-122.0215347,3a,60y,...
20330 Stevens Creek Blvd is even worse, there isn't even a logo anywhere just the letters 'APPLE' in tiny font on a nondescript sign. I had no idea this was Apple until someone showed me.
https://www.google.com/maps/@37.3228536,-122.0285457,3a,75y,...
If you are just driving down Stevens Creek there is a good chance you won't realize how expansive Apple is. They are not flashy buildings.