As said in other pages of this site, Ultramundum contents will be organized in ultravision channels, very similar to those of classic television, but with a big advantage: they will be three-dimensional and interactive. Ultramundum will have a rich collection of ultravision channels, but the first and more important will be 4DGea, the model of our planet in four dimensions. Any place on Earth will be explorable and it will be possible to visit it not only in three dimensions but in any period of the past. From egiptian pyramids to the Midway battle, fron the streets of Cesar's Rome to the Paleolytic, each uman being will be able to explore in any moment our planet, in any place and in any time. 4DGea will became the greatest work ever done by mankind, a four-dimensional book whose pages will contain everything we know of our history, everything of our science, everything of our culture, everything about our endless adventure. For more details, visit the project's site.