Circles create an instant focal point when you lay out a garden space. I've seen small, circular ponds like this used as sandboxes when children are young and then filled with water once the children outgrow them and can be trusted to behave safely around a water feature.
No More Mowing: 10 Grass-Free Alternatives to a Traditional Lawn
Rock Garden A rock garden can be an attractive alternative to a grass lawn. This one has a rock streambed as the centerpiece, with low-water perennials flanking and overflowing its sides. The garden's natural look offers a lot of color and visual interest.