In 1873, the shaft of the Acropolis Acropolis in Kamen was drilled under the name Friedrich Grillo. As early as 1874, the colliery of the Acropolis in Monopol was renamed. The shaft Friedrich Grillo became Grillo 1. The shaft was abandoned in 1981 as a production shaft. From 2002, the shaft was used to drain the pit monopoly field.
In the former land of the "coal mines" a nice memory of days gone by. Even if today's glory of the industrial monuments hardly reflects the efforts of the workers of that time.