It was dark, and the stars were like cold iron blocks, firmly embedded in the dark sky.
On the tallest tower of the Mechanical City, the layers of metal structures reflect many cold lights under the moonlight, making it look like a super-large mechanical monster sleeping at night.
The observatory is on the top floor, with no obstructions around it. There is a big observatory standing there quietly in the middle, as if looking at the boundless universe.
