Anchor Highland Stone® Freestanding Wall: Sister Component to the Anchor Highland Stone retaining wall, the Anchor Highland Stone® freestanding wall is a versatile system that offers almost limitless design possibilities. The Freestanding Wall system is not a retaining wall, but rather a decorative wall that stacks vertically and has a natural stone look on both sides. It is ideal for defining spaces and creating additional seating. The ends of each piece are angled to allow both straight walls and curves. Column units can be added for additional wall strength and design options.