World's tallest tower, the Tokyo Sky Tree, opens
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Credit: JIJI PRESS/AFP/GettyImages
This combo picture, taken on (L-R) October 13, 2009, April 14, 2010, August 17, 2010, December 1, 2010 and May 16, 2012 shows construction progression of the world's tallest radio tower, the Tokyo Sky Tree in Tokyo. The 634-meter tower opened for the public on May 22, 2012.
