Massive rotating space colony, O'Neill Cylinder: - Gigantic cylindrical space h

Massive rotating space colony, O'Neill Cylinder: - Gigantic cylindrical space habitat, 8km diameter, 32km long - Two counter-rotating cylinders for stability - Interior landscape with Earth-like features: - Alternating strips of land and windows along the length - Lush forests, blue lakes, green fields, and futuristic cities - Curved horizon visible due to cylinder shape - Exterior details: - Solar panels and reflective mirrors for power and light - Docking stations for spacecraft - Agricultural rings surrounding the main structure - Visible curvature of the internal "sky" - People and vehicles visible for scale - Earth and stars visible through large windows - Hyper-realistic 3D render, cinematic lighting - Inspired by NASA space colony concepts - Style: photorealistic, sci-fi, futuristic