Why is the chrysler building so Beautiful?

I always loved the chrysler building ..or, to be more hunset, I think I noticed it when it was on sex and the city openning. Anyway it's remarkble enogth to be a landmark and a symbol of New York.

So, what can you learn by 10- minuets-scatch of this building? I guess is the strong vertical lines that meet at the top in an arc. This gives the skyscraper an harmonious "ending" at the top, and makes a your eyes move in a circle, up the front, round through the arc and down again.
That's the first sketch here- I promice to get some more soon.

Until then-
Yours - The Virtual Architect