Nail houses JUN 15 2009
Another nail house is actually a nail church. Citicorp Center was built without corner columns to accommodate St. Peter's Church, which occupied one corner of the block on which the skyscraper was built. The engineer who built Citicorp Center made a mistake related to the church's accommodation and famously corrected it after the building was built.
Update: The original link is dead, but In Focus has collected 20+ photos of nail houses in China, where development is happening quickly.