Humans have been building retaining walls for thousands of years to create flat, or gently sloping, terraces on hillsides. A lot of my readers have them on their own property — or need to build one — ...

We wanted to fix our sloped yard without spending a fortune, so we built a DIY boulder retaining wall. It’s strong, simple to build, and blends beautifully into the landscape.

Humans have been building retaining walls for thousands of years to create flat, or gently sloping, terraces on hillsides. A lot of my readers have them on their own property – or need to build one – ...

My daughters grew up playing a video game called Tetris, and we recently used the skills they learned from that game to build a wall. The Wikipedia definition of the game is this: “In Tetris, players ...