As their populations grow, future cities will need to house, feed, and transport millions more people. To solve these problems, cities might float on rising seas, grow crop in skyscrapers, and move travelers with flying drones. Catch a glimpse of the technology we might see in future cities, from self-cleaning streets to stores run by robots. As part of the Searchlight Books collection, this series explores the latest and greatest in the world of technology. Fascinating text, vivid photos, and real-world examples bring these amazing breakthroughs to life! Book jacket.