A 2x2 grid of 4 monumental mathematical symbols carved as colossal terrain typography in an arid landscape [Top Left: “∫” as a canyon-cut arch in sandstone, a thin aqueduct stream following the curve, tiny caravans casting long shadows] [Top Right: “Σ” as a stepped fortress carved into a mesa, sharp terraces, windblown sand pooling in corners, micro equations chiseled in] [Bottom Left: “π” as massive stone pylons connected by a lintel bridge, ruined blocks scattered like proof fragments] [Bottom Right: Penrose Triangle as impossible ruins half-buried, forced perspective illusion, harsh sunlight slicing edges] Aerial oblique shot, golden hour desert light, crisp dramatic shadows, photoreal erosion detail, minimal haze, swiss 2x2 grid composition.