The O2 Arena, referred to as North Greenwich Arena in the context of 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. It is named after its primary sponsor, the telecommunications company O2.
The O2 Arena is the world’s largest building by measure of floor space, and has the second-highest seating capacity of any indoor venue in the United Kingdom, behind the Manchester Arena, but took the crown of the world’s busiest music arena from New York City’s Madison Square Garden in 2008. The closest underground station to the venue is the North Greenwich station on the Jubilee line.
As of 2015, the O2 Arena is the busiest music arena in the world in terms of ticket sales, handling 1,819,487 tickets.