The O2 Arena is a multi-purpose indoor arena located in the centre of The O2, a large entertainment complex on the Greenwich Peninsula in London, England. With a capacity of up to 20,000 depending on the event, it is second-largest arena in the UK after the Manchester Arena and one of the largest in Europe. In 2008, The O2 Arena took the crown of the world’s busiest music arena from the Manchester Arena, a title which it had held since 2001. The closest underground station to the venue is the North Greenwich station on Jubilee Line. Following the closure of the Millennium Experience at the end of 2000, the Millennium Dome was leased to Meridian Delta Ltd. in 2001, for redevelopment as an entertainment complex. This included plans for an indoor arena. Construction of the arena started in 2003 and finished in 2007. Owing to the impossibility of using cranes inside the dome structure, the arena’s roof was constructed on the ground within the dome and then lifted. The arena building’s structure was then built around the roof. The arena building, which houses the arena and the arena concourse, is independent from all other buildings in The O2 and houses all the arena’s facilities. The arena building itself takes up 40% of the total dome structure. The seating arrangement throughout the whole arena can be modified, similar to the Manchester Arena. The ground surface can also be changed between ice rink, basketball court, exhibition space, conference venue, private hire venue and concert venue. The arena was built to reduce echoing, a common problem among London music venues. U2’s sound manager, Joe O’Herlihy, worked with acoustic engineers to introduce measures such as sound absorbing material on the arena roof and the bottoms of strategically placed seats to reduce echoing. Despite The O2 arena’s being open for only seven months of the year, the venue sold over 1.2 million tickets in 2007, making it the third most popular venue in the world for concerts and family shows narrowly behind the Manchester Arena (1.25 million) and Madison Square Garden in New York City (1.23 million). In 2008, it became the world’s-busiest venue taking the crown from MEN Arena with sales of more than two million.
