The following glass staircase solution is definitely a very interesting choice for modern apartments. I'd be the first one to go up those Twin stairs no matter how dangerous it all seems. Designed by Roberto Volpe, these Twin self-supporting glass stairs are definitely ready to offer an entertaining look for your eyes. But if you have kids around the house then you might want to consider something less dangerous for them. Don't get me wrong; the Twin staircase is made of durable tempered glass and steel supports used to mount each step on the wall. You won't have to worry about their durability, as they will certainly not fail you once mounted on the wall. What's rather troubling is that there's no railing on the other side to hang on to.