Passage: Felix Magath took over and led Bayern to two consecutive doubles. Prior to the start of the 2005–06 season, Bayern moved from the Olympiastadion to the new Allianz Arena, which the club shares with 1860 Munich. On the field, their performance in 2006–07 was erratic. Trailing in the league and having lost to Alemannia Aachen in the cup yet again, coach Magath was sacked shortly after the winter break.Hitzfeld returned as a trainer in January 2007, but Bayern finished the 2006–07 season in fourth position, thus failing to qualify for the Champions League for the first time in more than a decade. Additional losses in the DFB-Pokal and the DFB-Ligapokal left the club with no honours for the season.

Question: Bayern was held in which new construction for the 2005-06 season?
Allianz Arena