Create a mesmerizing 3D geographical image that captures the essence of a post-apocalyptic world. In this image, a colossal red eye emerges, captivating viewers with its broken glass-like pupil. Tiny people can be seen climbing over the edge of the eye's lip, diligently repairing the shattered glass, creating a stunning visual effect that emphasizes macro details. The composition should evoke a sense of duality, representing the two contrasting parts of the post-apocalyptic world. Additionally, incorporate elements of double exposure crack, symbolizing the fragility and resilience of the human spirit.