After going in the same direction back in Arc, I got used to seeing the wastelands. Rocky emptiness full of dust. In Petrograd, it was different because behind the gate awaited for ma a freaking jungle filled with old remains of clearly some kind of civilization. You could see pillars made out of yellow stone covered in green creepers, and just next to it trees stretching just enough to block the view of the sky.
Further, among more trees, you would spot a piece of wall, now mostly crumbled, but just its size was enough for you to think that there used to be a massive building in that place many years ago.
Obviously, it was all fake, created by the device. There was never a civilization in that place.
