3 dimensions in space at Lancaster University

I liked this corridor of fairy lights at Lancaster. Think of them as stars. Here it is clear that some are further away than others but notice that at the far end of the corridor, they all start to look the same distance away. With space, it is even unclear that any of the stars are close just be using the naked eye. Close stars can have their distance measured by parallax from one side of the Earth's orbit around the Sun to the other side.