SURE Architecture unveiled plans this week for a futuristic skyscraper that could house thousands of people and have its own ecosystem. The Endless City proposal has already won the Skyscrapers and SuperSkyscrapers Competition. The firm believes the skyscraper would be a great space saver for densely populated cities because it will allow them to expand upward instead of outward. Although still in the planning stage and without any guarantees it will ever be built, SURE has earmarked a plot of land just north of the City of London to build the vertical city. If completed, the Endless city could be as tall as 300 meters, close to London’s tallest building the Shard, and take up an area of 165,000 square meters.