It looks as though the transparent concrete named Litracon will finally become available. The concrete uses some sort of fiber optic cable which allows you to see through concrete. Superman doesn’t have anything on you anymore…
From the LiTraCon Website: There will be substantial changes in our life at LiTraCon in the near future. Due to the great interest and growing demand on our products worldwide, we are happy to announce our ability… Read More: http://www.trendhunter.com/trends/litracon-light-transmitting-concrete/