Prompt
                                        
                                            "A scenic view of the Qinghai–Tibet Railway, the highest railway in the world, winding through the Tibetan Plateau with the Tanggula Pass and surrounding mountains in the background, with a train traveling on the single track railway, incorporating elements that reflect its notable features such as permafrost engineering, oxygen supply on trains, and environmental challenges, under a clear blue sky with a few clouds, in a realistic style."