The Baku Crystal Hall is sport-entertainment complex, which was built to host the Eurovision 2012 in Baku. On August 2, 2011, it was announced that main agreement was signed with the German construction company named ‘’Alpine Bau Deutchland AG’’ and necessary preparation had begun. Arena construction was completed on 16 April 2012. The capacity of this hall is 25,000 spectators and VIP rooms in the arena. The magnificent lighting system used in the Baku Crystal Hall consists of over 2,500 projectors and more than 3,000 meters of cable which were brought from Germany. Light-emitting diodes with an area of more than 1,300 m are placed in the form of electronic windows on the scene of the Baku Crystal Hall.