The Naschmarkt is certainly Vienna‘s most known market. At night the stands are closed but many eating places are open, especially on the North Eastern half.
Walking along the South Western part in a winter night no trash will be found from the busy daytime. Graffiti, concrete blocks to stop drunken drivers from entering the areas and scarce lights gives this empty space a special ambiance which will trigger your phantasy for rather darker movies.
Here the post on the Naschmarkt during daytime.