The Irish Times

The Obayashi Corporation must be thinking twice about proceeding with Norman Foster's Millennium Tower in Tokyo, after seeing what happened to the twin towers of the World Trade Centre; as a sitting duck for kamikaze-style terrorist attack, this conical tower would surely be an all-too obvious target. Designed in 1989 as a "timely solution to the social challenges of urban expansion", the tower is the world's tallest projected building. Rising 840m (2,772 ft) from its own artificial island in Tokyo Bay, it was to be 170 storeys high and would have contained 104 million sq m (1,119 million sq ft) of space.