caption: The image shows an escalator in a building with a colorful mosaic on the floor. On the left side of the image, there is a board with some text on it, and on the right side, there are some objects on the wall. At the top of the escalator, we can see the ceiling of the building, and in the background, there appears to be a person sitting on a chair. The mosaic is composed of a variety of colors, creating a vibrant and eye-catching display.