Quote:
Originally Posted by JMancuso
i would say indefinitely as long as they are maintained. there are cathedrals in europe that are centuries old so i don't see why a modern skyscraper can't last as long or longer.
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The difference being that some of these buildings are quite tall and move alot more than an old cathedral, which probably doesn't move at all. also you have alot of steel which gets fatigued after a period of time.