Millennium Dome

English thumb Proper noun Millennium Dome 1 A large building at Greenwich in London, the largest single roofed structure in the world; now renamed "O2". en 2012 Andrew Martin Underground Overground: A passenger's history of the Tube Profile Books, 978-1846684777 60–61 And while the Jubilee Line Extension was not built to serve the Millennium Dome, it was finished quickly in 1999 in order to take people to the Millennial Party that was held here; [...] See also en white elephant en London