We often look at various architectural marvels here, and in most of them concrete plays a very important part. But what if I told you that not everything you thought you know about concrete was actually true? What if I showed you that concrete can let the light pass through it, would you use it in your modern home? How is this mesmerizing effect obtained? Well Litracon is a combination of optical fibers and concrete and the result of this ingenious combination is a new material, glass-concrete. The transparent effects are very impressive, but one has to wonder whether such concrete is as dependable as the regular kind, you know, the one that doesn’t let light flow through it.