American architect Minoru Yamasaki designed the towers, whose narrow vertical windows -- heavily influenced by Gothic architecture -- helped humanize (barely) the towers' sleek, minimalist look and ... more 
American architect Minoru Yamasaki designed the towers, whose narrow vertical windows -- heavily influenced by Gothic architecture -- helped humanize (barely) the towers' sleek, minimalist look and feel. Interestingly, the man who envisioned New York's tallest buildings had a fear of heights. Photo: Stan Wayman/Time & Life Pictures/Getty Images

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| Photo By Stan Wayman/Time & Life Pictures/Getty Images
Wed, Aug 10, 2011 5:02 PM EDT