What is this strange formation near Râmnicu Vâlcea?
My guess is streams fed by mountains that have been tectonically compressed and is undergoing some rotation. Near Italy are 3 tectonic boundary. Convergent, transform, and divergent. Due to the plate motion of the Eurasian plate, to the African plate, and the Arabian plate, it is causing compression and what I can describe as some rotation the land. It appears to be an involved relationship. I used Google Earth to create this map:



I hope I helped or gave you a direction to look. As you can see by the arrows, there are areas of convergence that are oblique and related in a way, that his geologic feature is not at all impossible.

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Earthquakes in Italy