The window trick of Las Vegas hotels
Presumably, he means a single window we see is made up of 4-6 panes and 
those panes are bigger than a single storyI am having trouble seeing the 4-6 windows combined from the photos of the Bellagio.   The close up does not help.The first mentioned buildings seem brutalist esp. the second one.
It is a form of utilitarian architecture that has great appeal to me. 
I think in part because it is rare now.I find them far more pleasing to the eye than the giant glass clad high rises
that was the fashion for a long time. 
I have read that it is now going out of fashion, but I have not yet seen any
examples locally.Wanting to give my dogs new and exciting places to sniff and pee 
I try to walk around in different neighborhoods in the area.
As have been doing this for many years now and the unexplored
neighborhoods are getting farther and farther out.About two years ago, at random, I found a brutalist single
family dwelling.  It is a big house for a single family but
it is the smallest such building I have ever seen, it is beautiful.
(to me)I truly stands out from all the other nearby houses. 
I have visited that area often to take pictures and just look at it.
I would love a chance to see the inside.If I had the money and I most certainly do not, id love to live
in a house like that. 
It would make giving directions a lot easier as well.I wonder if there exists brutalist "tiny homes".
That would be something to beholdFor an explanation of the term brutalist see:
https://en.wikipedia.org/wiki/B%C3%A9ton_brut