...are these spot lights. 100 meters above the ground outside what looks like a huge metal barrel - or a grey coke tin can. It used to be Europe's largest gas store. Used in the steel and coal area where I grew up, the Ruhrgebiet when processing coal and making steel.
These days the Oberhausen-based Gasometer is a famous and unique venue for exhibitions and art installations. Christo had already made two installations.
This year there is one about mountains: Der Berg ruft! (The mountain is calling!).
Before showing pictures from the rooftop and my home town, here are some of the exhibition ...
Holger NeuhausOberhausenGasometerDer Berg ruft