The ‘Rolling’ most unusual staircase design by Roberto Semprini for Edilco draws inspiration from the ergonomic forms of natural rocks smoothed by water. The stairs look like the giant river stones … but they are actually concrete blocks polished to perfection. This spiral staircase appears to lead to nowhere as it was installed as a part of Milan’s exposition aimed to show that decor objects can be art. Notice how the spiral steel railing is at no point connected to the staircase. This unusual three-dimensional design is an art masterpiece indeed.