Light playing on water drops, dust or ice crystals in the atmosphere produces a host of visual
spectacles – rainbows, halos, glories, coronas and many more. Some can be seen
almost every day or so, some are once in a lifetime sights. Find out where to
see them and how they form. Then seek and enjoy them outdoors. —Les Cowley
—Atmospheric Optics

The huge index shows probably hundreds of images. I particularly liked the fogbow and the glory.