Yesterday I went out to my car and saw this frost forming on the windows on my garage door. After I took my wife to work I went out and took some pictures. The fractal pattern of the frost is absolutely magnificent, and the backdrop of the darkened garage help make it stand out. It was perfect timing, just enough Sun was illuminating the frost to make it stand out, but not enough that it had begun evaporating.

To me, the frost blooms look almost like a map.  I might have to trace it to see what I can do with it.

Frost blooms on a window.