Bus Shelter Shadows

The sun came out while I was waiting for the bus. Suddenly a network of interlocking lines appeared on the pavement at my feet. The glass and metal structure over my head has a utilitarian purpose, offering shelter from the rain or snow. But the architect also tried to make it a pleasing pattern. Did that person anticipate these shadows? There is bit of magic in the way they appear and disappear with the sun and clouds. They are an ephemeral reminder that interesting designs can be found all around us.