A "futuristic metropolis" refers to a city or urban area that is portrayed or envisioned as advanced, modern, and technologically advanced in a way that feels like it belongs in the future. Full definition
An elaborately imagined interstellar universe earned Marvel's planet - hopping franchise a Visual Effects nod for its exotic creatures and bustling futuristic metropolises. (vulture.com)
Once your brain gets used to the idea of a stationary car chase, another one hits you: that cool, futuristic metropolis on the screen? (vodzilla.co)
If you don't know anything about this game, players take the role of the mayor and get the chance to build their very own futuristic metropolis, construct ultra-modern skyscrapers, and plan out the network of transportation with more than 100,000 different architectural features. (thatvideogameblog.com)