There are some unique things or pictures that need to be observed from a unique angle in order to experience their distinctiveness. Hungarian artist István Orosz is skilled at creating images that seem simple but are actually complex. Like the painting above, if you don't get the knack, no matter whether you look at it horizontally or vertically, or try every angle one by one, you won't see its true form. It turns out we need an auxiliary tool - a cylindrical mirror. After placing it in a specific position, the seemingly chaotic or unremarkable 2D picture on the drawing presents characters, buildings or other 3D regular forms in the mirror, which is quite amazing.