Vilnius. The ruins of the castle of Duke Gediminas Vilna. Residues Gedimin lock (Castle Hill Gediminova) Roerich N.K. (Part 1)

The picture has something of this: geology, outdoors, rock, canyon, sandstone, landscape, erosion, nature, scenic, stone, water, wall, park, desert, mountain, people.
Perhaps it’s a painting of a castle with a green hill in the foreground and a blue sky in the background, with a few clouds in the sky.