If you look at news photos of earthquakes in towns, you'll see lots of buildings have fallen off their foundations with the exterior walls still square and windows unbroken. For some examples:
http://www.nbmg.unr.edu/nesc/bobcox/slide2.php?id=5
Another apt building with a garage under the living units:
http://www.geocities.com/petsburgh/3121/pics4/eq001.jpg
note the crushed cars sticking out. Windows still intact in the building, though. :-)

Here's the interior of a building after a quake:
http://maximus.ce.washington.edu/~nisqua..._BUILDINGS4.jpg
and here's an outside office with windows intact:
http://maximus.ce.washington.edu/~nisqua..._BUILDINGS5.jpg

Photos from the recent Pakistan earthquake shows buildings with almost complete internal collapse, with exterior walls and windows more or less intact:
http://www.iiees.ac.ir/English/bank/Zarand/zarand_pic_3_e.html

It's all disaster, and you never can tell what will break and what won't.

Phil