In the list of UNESCO of world heritage is listed the Himalayan Express in Darjeeling. Formerly it was running from the hot Indian plains into the hills of Darjeeling to transport the Britisch upper class from the heat to a cooler climate. Now that it is on the Unesco list, the train is usually overcrowded. Good weather or not, the scedule must be executed. Hence this photo. Because of the mist we could see nothing of the surroundings.
This picture is taken as a low key silhouet, and therefore no details are visible.