Gesner (shown here in the circular main house) welcomed us in to explore his home. He told us how he believes round design is one of the easiest and best ways to build so that you don’t lose any space without sacrificing a strong structure. “Everything else in the universe is round and exists in cycles—plants, the sun, the way the planets orbit,” he continued.  Photo 4 of 9 in Iconic Perspectives: Harry Gesner’s Sandcastle