Sunset fades over an empty school playground in Xi'an, turning the basketball backboards, benches, and trees into dark silhouettes. The sky is pale blue, with variegated clouds—some puffy, some mere wisps—in shades of pale yellow, pale pink, lavender, purple, and indigo. The sky above is reflected in pools of water on the playground's asphalt surface.

中国陕西省西安市, by 荧_Lumine (CC BY 2.0)