Stone wall and terrace wall are useful for larger applications. The blocks are bigger and heavier ... However, make sure your wiring is rated for outdoor use. If your retaining wall is at the bottom ...

The retaining wall is built from large rocks and landscaped with stacked soil beds that echo the natural setting and local ...

Just beware that the kilning, construction, and density that help these bricks hold up to fire-high temperatures also add to their cost compared with retaining wall blocks of natural stone.