So you're roaming the world, and you see a really nice path way with such natural, beautiful looking stone, but yet, so perfect. Maybe it's not even a path, but a wall! Then you wonder to yourself, "How on earth does one go about that"? You'd think it would be extremely time consuming, having to hand place each piece of stone, let alone cut the stone.
Well, your mind is about to be blown, because in reality, it's actually not hard at all. When it comes down to it, they are most likely a simple concrete mold. Yea... a mold. They can be simple, or complex; whatever your mind floats to really. Its all up to you.
You don't even need a professional to do it. If you want to go all out and do it yourself, then go for it! With the right concrete in hand, and a simple stone mold, you can create flawless stone pathways, or walls to add a unique new look to a part of your yard. If you have a garden, something like this would be relatively purposeful. These molds aren't all too costly either. You can flip around on the internet and find some anywhere from $30 - $200. If you have a mold, some good concrete mix, and a few hours out of a weekend to spend doing this kind of project, then it might be a neat idea.
Here's a few links to help you keep exploring if you are interested: