Ключевые слова: ambivalent column, architectural illusion, conceptual art, convex concave, detailed, dimension play, dreamlike, geometric art, geometric illusion, gravitydefying, hypnotic, illusory, impossible object, logicdefying, mathematical art, mc escher, mesmerizing, mindbending, noneuclidean, optical art, optical illusion, paradoxical architecture, perception play, perplexing, perspective trick, photorealistic, physics defiance, reversible perspective, shadow play, stone texture, surreal, thoughtprovoking, trick of the eye, visual deception, visual paradox,