Baltic Arena in Poland The Baltic Arena (Polish: Arena Bałtycka) is a multi-use stadium in Gdańsk, Poland, which is going to be constructed for 2012 UEFA European Football Championship. According to recent plans stadium will look like amber and will be similar to Allianz Arena in Munich. The construction is going to start in 2007. Once completed in 2010, it will be used mostly for football (European soccer) matches. The stadium will have a capacity of 40,000 people.