Revisiting The 10 Most Expensive Buildings In New York: NY Observer

09/26/2009 05:12 am ET | Updated May 25, 2011

In April 2007, during those blindered days of economic bluster, The Observer published an article naming New York's 10 most expensive towers, according to prominent real estate professionals. They agreed on the most valuable single building: the GM Building. That rocket of marble and black glass, considered then and now the most coveted skyscraper in Manhattan, if not the country, was, said one, "worth $4 billion--plus."

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