> <i>The effect is most pronounced with freshly-planted trees</i><p>I'd suggest that a well established, well maintained orchard planted on a grid is even better. They always got my attention even as a kid, going to shop in bulk at local orchards. The limbs are kept pruned off of the ground at a consistent height, providing stark relief where the alignments of trunks obstruct or reveal distance. Best experienced riding past slowly on the orchard's gravel drive, in a car built much closer to the ground than they are these days. The visual alignments strobe through several different iterations, it's just stunning.