There’s no way that’s feasible, right? These familiar steps, called the Penrose stairs, are a type of “impossible object”—a construction that could not exist in reality even though its ...

Like the impossible Penrose stairs — the paradoxical illusion of an ever-climbing staircase — his art increasingly plays with viewers’ sense of perspective. Existing on multiple planes at ...

Christopher Nolan's film Inception features a classic optical illusion called the Penrose staircase ... Harshbarger takes us for a walk on the stairs. The popular film Inception provides its ...