The Potager du Roi, the kitchen garden dating to the 1660s that sits just outside the formal garden at Versailles, France, includes many fabulous espalier fruit trees. I like the form of the oblique cordons. A form one sees in books, but not in real life. I love the sense of energy that is projected by the angled trunks. This particular form is just about the least natural of any espalier form. Triumph of human control over natural processes.