In Berlin, convoys of honking cars full of joyous fans cruised the Kurfürstendamm shopping district.
“The sheer abundance of vehicles caused a traffic situation,” a police spokesperson said.
In Frankfurt, some 6,000 mainly Turkish fans viewed the game on a public screen, then paraded through the downtown area to celebrate.
In Bremen, Turkey fans transformed the city's downtown into a party mile. “Not a bicycle could move” in front of the main train station for an hour after the game's end, the police said.
Many German fans showed solidarity with the Turkish fans during the celebrations, and police said they were relieved at the victory. Emergency forces in major German cities had planned for potential riots in the case of defeat.
Turkey played an exciting game against Euro 2008 co-host Switzerland, shooting the definitive goal in the third minute of overtime.
Germany is home to some three million residents with Turkish background.