<Tr> <Th_colspan="2"> Website </Th> </Tr> <Tr> <Td_colspan="2"> theo2.co.uk </Td> </Tr> <P> The O2 Arena (temporarily the sponsor - neutral "North Greenwich Arena", during the 2012 Summer Olympics and 2012 Summer Paralympics) is a multi-purpose indoor arena located in the centre of The O2 entertainment complex on the Greenwich Peninsula in south east London . </P> <P> The arena was built under the former Millennium Dome, a large dome shaped building built to house an exhibition celebrating the turn of the third millennium; as the dome shaped structure still stands over the arena, The Dome remains a name in common usage for the venue . The arena, as well as the total O2 complex, is named after its primary sponsor, the telecommunications company O . </P>

Where is the o2 arena located in london