If you look at Kalinningrad from google earth, it is mostly dead plants and trees crisscrossed with railways and warehouses. One big toxic shithole from back in the day when the Soviets gave no care whatsoever for the environment. The main reason the Poles did not roll up the territory in the early 1990s and even the Germans don't want it back. Someone was hoping the Russians would clean the place up on their own, but I guess that's not happening much.