And they tear them down just as quickly: http://weburbanist.com/2012/01/08/high-anxiety-rooftop-excavators-tear-down-from-up-top/ http://weburbanist.com/2012/01

And they tear them down just as quickly: http://weburbanist.com/2012/01/08/high-anxiety-rooftop-excavators-tear-down-from-up-top/ http://weburbanist.com/2012/01/08/high-anxiety-rooftop-excav...