O2 World: Savannah I.

O2 World is an arena in Hamburg, Germany, among the most modern arenas in Europe. It was opened on November 8, 2002 and can hold up to 16,000 people. From 2002-2010, it was called the "Color Line Arena," and is primarily used for hockey and handball. It is currently owned by the Anschutz Entertainment Group and is said to have an elevation of 33 meters.

Many performers and events took place in O2 world. Some of the events that occurred:

• World Wrestling Entertainment- Survivor Series tour

• 2007 World Men's Handball Championship 

• Scooter- recorded the Live in Hamburg album

• Sting- Symphonicities tour

• Muse- The Resistance your

• Lady Gaga- ArtRave: The Artpop Ball

• Katy Perry- the Prismatic World Tour