Create, destroy restore ...

I haven't been on the blog for sometime now. But a program which I was watching on History channel kind of prompted me to write. The program was about architecture of old monuments, cities, how it was destroyed and then how it was restored. I could not stop wondering about this amazing aspect of human life. First we create beautiful things, then we destroy them and then we strive to bring back the destroyed object to life by restoring it. Humans have been doing it on and on for ages and will continue doing so. What is the psychology behind this behavior ? WTC was first created, then destroyed and now being recreated. Taj was damaged and now been restored. Examples are endless. Any answers to throw some light on this behavior ?