futuristic cityscape with lush green environment.a river flows through the urban environment

city landscape architecture nature river skyline park technology urban greenery modern environment ecofriendly transportation trees mountain building light design blue water road highway plants vista travel scenic outdoor habitat futuristic life peaceful daylight vivid tropical visualization utopia innovative serene metropolis planet lush beautiful perspective sustainable cityscape green breathtaking merges flows showcasing harmony generative generativeai environment GenerativeAI