We have an intricate wrought iron grille at one of our apartment's windows. We love the shadows it projects onto the shades and into the room. But we wouldn't want grilles covering every window unless it were a necessity. Delia Shades is one answer that gives you beautiful "grilles" but allows them to be rolled up with your window shades when you want a clear, open view.
Delia Shades come in several collections from geometric Moorish lines to the intricate French wrought iron look. Or you can even send them your own design and they'll work something up for you.