He studied at the Technical University of Munich and later at Technische Hochschule Charlottenburg .
When visiting the Alsatian city of Strasbourg , Ahrends was so impressed by the Strasbourg Cathedral that he turned to architecture .
Ahrends studied at the Technical University of Munich and later at Technische Hochschule Charlottenburg .
When visiting the Alsatian city of Strasbourg , Ahrends was so impressed by the Strasbourg Cathedral that he turned to architecture .