The City of the Future is a Static introduced in the 15.3.0 update.
It appears to be a set of large, futuristic skyscrapers with many floors. There are also some roads for the futuristic cars.
It tremendously increases the chance to get a gems in the Lucky Chest.
- This item has no floor, because when it is paired with the Skyscraper Roof, it feels like as if the player was standing on a futuristic skyscraper instead on ground level.