This book offers an overview of Russian and international experience in developing the concept of future cities and its practical implementation. The concept of future cities is associated with several important trends. The first trend is the sustainable development of the urban environment and the implementation of eco-friendly technologies and materials in civil construction, industrial and power plants. The harmonious coexistence of the citizens with all forms of nature in the urban habitat becomes a great value. The second trend is the individualization of the aesthetical and architectural image of the future cities. The city's unique flavor based on the blending of the historical legacy and architectural traditions is now as important as the utility of the environment. The third trend is the digitalization of the urban environment with the use of state-of-the-art sensors, information and communication technologies, and data science. The efficiency of operations and services achieved by the extensive use of complex IoT networks becomes a value as well. The last trend is the adaptation of the urban and social environment for individual demands of a community and a person. Individual comfort and safety are now more important than ever before. By addressing these trends, the volume discusses local and international plans, practices, and technologies aimed at the development and implementation of future cities.