The image depicts a 3D optical illusion, which is a visual trick that makes objects appear to be in three dimensions when they are actually two-dimensional. The illusion features a building with a series of vertical and horizontal lines that create the illusion of depth. The building has a balcony on the left side and a staircase leading up to it. The stairs are depicted as if they are going up, but in reality, they are going down. The overall effect is that the building appears to be floating above the ground.