Image by Jim Linwood via FlickrThe largest or Millenium dome is located at Greenwhich Peninsula, United Kingdom.
Wikipedia informs "In plan view it is circular, 365m in diameter — one metre for each day of the year — with scalloped edges. It has become one of the United Kingdom's most recognisable landmarks. It can easily be seen on aerial photographs of London. Its exterior is reminiscent of the Dome of Discovery built for the Festival of Britain in 1951."
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