In a futuristic city on a distant world, towering skyscrapers are surrounded by floating gardens filled with genetically engineered plants that provide oxygen for the inhabitants. The streets are bustling with hover cars and robots, while holographic displays showcasing the latest advancements in technology light up the sky. Citizens walk alongside alien creatures, exchanging goods and ideas in a harmonious blend of cultures and species. Create an image that captures the vibrant and dynamic intersection of science, technology, worlds, and city life in this futuristic utopia.

In a science-fiction landscape on a far-off planet, high-rising structures tower above the city skyline, encircled by levitating green spaces teeming with biologically altered flora that supply vital oxygen to the residents. The thoroughfares are filled with anti-gravity vehicles and mechanized beings, and luminescent projections that demonstrate the most recent technological innovations illuminate the heavens. Human citizens of various descents and genders roam around along with extraterrestrial beings, trading goods and exchanging thoughts in a serene fusion of cultures and species. Envision an image reflecting this bustling and lively crossroad of science, technology, planets, and urban existence in this future paradise.