Quote:
Originally Posted by hkskyline
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![](http://www.globalphotos.org/hongkong/20070819/IMG_0079.jpg)
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This stood out as interesting to me because you don't see many sheer glass walls that are dirty.. usually they are expensive in the first place (at least that's what I assumed) so people usually keep them clean.
The idea got me thinking about our present structures in the future.