From Wikimedia:

Cottage village of Wiesendorf.
Home for Austrian projects.
developed infrastructure.

The commentary:
As a resident of the town, I can say. That in general, this whole slope was formed as a result of the unsuccessful launch of the S25 missile. The whole grassland is a place contaminated with an asymmetric dimethylhydrazine (heptyl - a component of a highly boiling rocket fuel). All the trees in the infected area just disappeared.