The Ruhr region in North Rhine-Westphalia, is naturally flat but dotted with hundreds of small man-made hills.
Ruhrs coal mines were in great demand during the industrial age and it enabled the region to grow exponentially.
The soot which had once blackened the region disappeared, and dirty heavy industries gave way to clean ones.
A number of them are home to artistic landmarks.
Halde Haniel is now a popular tourist destination.
Halde Beckstrasse
A 60-meters high tetrahedron protrudes from the halde in Beckstrae.
Halde Norddeutschland is also a popular spot for paragliding.
On the top is “The Geleucht” an oversized miner’s lamp that glows impressively at night.
Halde Rungenberg
At Halde Rungenberg are two peaks.
At the summit of both are installed two spot lights housed in rusted steel tubes.
At night, the lights are turned on and directed towards the sky creating a pyramid shaped light structure.
Sources:The Atlantic Times/Wikipedia/Ruhr Tourism
