Galatasaray S.K. is a professional sports club based in Istanbul, Turkey, founded in 1905. It is one of the most successful and popular teams in Turkish sports, particularly known for its football team. The club's colors are yellow and red, and it plays its home matches at the Türk Telekom Stadium. In addition to football, Galatasaray S.K. also competes in various other sports, including basketball and volleyball. The club has a rich history and a passionate fan base, known as the UltrAslan. Galatasaray has won numerous national and international titles, including the prestigious UEFA Champions League in 2000.