Notice: Trying to access array offset on value of type null in /mnt/web120/e3/67/53139967/htdocs/hotel-knappmann-2021/includes/core/PageService.php on line 310
Notice: Trying to access array offset on value of type null in /mnt/web120/e3/67/53139967/htdocs/hotel-knappmann-2021/includes/core/PageService.php on line 311
Warning: Cannot modify header information - headers already sent by (output started at /mnt/web120/e3/67/53139967/htdocs/hotel-knappmann-2021/includes/core/PageService.php:310) in /mnt/web120/e3/67/53139967/htdocs/hotel-knappmann-2021/controller/frontend/index.php on line 56
The Zollverein colliery is also called the "Eiffel Tower of the Ruhr" and is THE sight of the Ruhr. It is a converted industrial complex that now houses several museums. The colliery has been a UNESCO World Heritage Site since 2001.