The Allianz Arena is a football stadium in Munich, Bavaria, Germany with a 75,000 seating capacity. Widely known for its exterior of inflated ETFE plastic panels, it is the first stadium in the world with a full colour changing exterior. Located at 25 Werner-Heisenberg-Allee at the northern edge of Munich's Schwabing-Freimann borough on the Fröttmaning Heath, it is the second largest arena in Germany behind only Signal Iduna Park in Dortmund.
The two professional Munich football clubs FC Bayern Munich and TSV 1860 Munich have played their home games at the Allianz Arena since the start of the 2005–06 season. The clubs had previously played their home games at the Munich Olympic Stadium since 1972. TSV 1860 München previously had a 50% share in the stadium but FC Bayern Munich purchased their shares for 11 million euros in April, 2006. The arrangement allows TSV 1860 Munich to play at the stadium while retaining no ownership until 2025, when the club will need to find another ground.