Question: what part of london is the o2 arena in

title: The O2
text: The O2 is a large entertainment district on the Greenwich peninsula in South East London , England , including an indoor arena , a music club , a Cineworld cinema , an exhibition space , piazzas , bars and restaurants . It was built largely within the former Millennium Dome , a large dome - shaped canopy built to house an exhibition celebrating the turn of the third millennium ; consequently The Dome remains a name in common usage for the venue . It is sometimes referred to as The O2 Arena , but that name properly refers to a smaller indoor arena within The O2 . Naming rights to the district were purchased by the mobile telephone provider O2 from its developers , Anschutz Entertainment Group ( AEG ) , during the development of the district . AEG owns the long - term lease on the O2 Arena and surrounding leisure space . 

Answer: answer: The O2 Arena is on the Greenwich peninsula in Southeast London, England.