Millions of years into the future, the Sun becomes a red giant, requiring mankind to develop extremely high technology, enough to survive the intense solar radiation and high temperatures to live on Earth, as well as on the Moon and other worlds of the system solar. In this way, mega-cities the size of European countries were built, with colossal buildings, kilometers and kilometers high, both on Earth and on the Moon. And with immense technology the Moon (top right) was "dragged" to the next of the Earth, and became a world similar to Earth. In addition, envelope wraps were developed on Earth and the Moon, made of a substance capable of avoiding exposure to solar radiation, and connected transport channels between Earth and Moon, to transport ships between the two worlds.
From the top, cities have a map formed by radial circles and lines that form two intersecting four-pointed stars for a better transport flow, as well as reference to the futuristic designs of Jacques Fresco and various spiritual symbols. High tech buildings are ecological and very large, but with some "channels" and bridges between the two worlds, to give more mobility to the interior of cities and between them.