File talk:Herkulesbuilding.jpg

This file has been used in: Kölns Hochhäuser: Die Top 11 (in de). express.de / M. DuMont Schauberg Expedition der Kölnischen Zeitung GmbH & Co. KG (2013-02-27). Retrieved on 2013-02-27. "Thank you" Tweet sent to @express24. Incl. a "Thank you" sent back from @express24

This file has been used in: Tornyok és egyebek: kölni modern és még modernebb (in hu). hamster.blog.hu (2015-04-14). Retrieved on 2016-11-09.