Retaining Walls & Terraces  Retaining Walls & Terraces Today’s retaining wall systems can transform mundane landscapes into elegant outdoor environments. Tiered gardens and stepped terraces, created with retaining walls, can reshape unusable hillsides. Curves and angles, freestanding walls and columns are all tools in the hands of Villa landscape architects used to sculpt the landscape of your dreams. Please download the latest Flash Plugin to view the current version of this page. We've detected that you have an old version of Macromedia Flash Player that cannot play the rich media content we've created.