Using the iPhone to See New York's Invisible Architecture

With the downfall of the economy and all the hundreds of projects trimmed or cut this year because of it, there are a lot of empty lots out there, just sitting there reminding us of what could have been. And for those projects that got started and ran out of money, we have that favorite phrase of ours, “accidental architecture.” It was both these types of failed architecture that got Irene Cheng and her husband Brett Snyder thinking.