Perhaps the country’s most recognisable venue, The O2 is one of the UK’s largest indoor arenas with a capacity of up to 20,000. It was built into the former Millenium Dome, retaining some of the original features. Since first opening its doors in 2007 with a celebratory concert by Bon Jovi, the O2 has gained a reputation for being a household venue in entertainment. The past decade has seen the likes of Justin Bieber, Kylie Minogue, Rihanna, Red Hot Chili Peppers, Jay-Z, Kanye West, Kendrick Lamar and Paramore perform in the state-of-the-art arena. Also a prominent venue in the world of sports, The O2 arena hosted the 2012 Summer Olympics and Paralympics, undergoing a temporary name change to the North Greenwich Arena. Heavyweight champion, David Haye, fought there in 2016, and the prestigious ATP World Finals has been an annual occurence since 2009. Expanding over the years, the O2 has sprouted many sub-venues. Indigo at the O2 is a smaller live music club, often used for after parties, private events and smaller gigs. Up at the O2 opened in 2012, inviting visitors to climb the building for panoramic views over London. Further outlining its dominance in entertainment, the O2 also features a bowling alley, exhibition space, and many dining facilities.