Descriptor: Smart Cities presently form part of the reality of the new concept of urban spaces, of the city, of small towns and of our neighborhoods. Digitized processes, sensorized cities and Big Data processing are changing the spheres of action, services and citizen participation in our cities.

Descriptor: Some cities have advanced entertainment into a magnet attracting tourists and creating an image of a playful city through their theme parks, their entertainment and shopping centers, their sporting activities and cultural and scientific events, etc. by adapting what is offered to a diverse audience: children, teenagers, the young and older adults.

Descriptor: The growth of the city has led to a profound consideration of sustainability, efficiency and our relationship with our natural surroundings. Present and future cities are built for energy efficiency, ability to support health, and recycling, creating green spaces, rational use of economic and social resources, and respect for international norms of sustainability and the environment, etc.

The development of hubs or centers for investigation and technological innovation surrounding the cities does not only produce a vibrant economy and offers new opportunities, but it also creates new social dynamics, attracts talent, changes the structure and architecture of the city, and generates a cultural environment, as well as forming investigators and scientists, etc.