Sanford Pentagon

The O2 Arena is a major entertainment venue in London, hosting the Brooklyn Nets when they play in the UK and numerous concerts and events. The 20,000-capacity arena is one of the world's busiest venues. Its distinctive dome structure is a London landmark.

Opened in 2007 as the O2, it transformed the former Millennium Dome. The venue has hosted NBA games, major concerts, and the 2012 Olympics. It consistently ranks among the world's highest-grossing arenas.