The Ultramundum Foundation is a non-profit organization whose mission is the development and spreading of a new technology, called UltraPeg. This technology is at the base of the entire Ultramundum project, explained in detail in a book of the same title, by Fulvio Dominici Carnino, president of the Foundation. Just as the book states, we believe that throughthese technologies new possibilities will be available for the betterment of human life and so we are working hard to make this possible. The Ultramundum Foundation is based in Italy, and is working with many public organizations to create fascinating virtual reconstructions of Italian masterpieces and cities rich in art. Some examples of UltraPeg application fields are: videogames, 3D interactive documentaries, synthesis of movies for the screen and for TV, 3D interactive TV (ultravision) and, in general, all those cases where allowing full 3D exploration of endless virtual worlds by any user, even through the Internet, is the main goal. UltraPeg is a patented revolutionary technology that stores three-dimensional interactive environments data in a highly compressed manner so that endless virtual worlds are sent through the web at highly accelerated speeds. Development time and costs are also extremely reduced. Entire virtual cities have already been developed and will be made available on-line. Compared to the known standard techniques, the substantial difference is represented by the memorization of data as concepts, not as collections of digital info. Ultramundum actually suggests the development of a huge ‘construction box’ in which any ‘little brick’ required to build the scene can be found. In this way, only the list of serial numbers of scene elements is stored; therefore reducing the overall data dimension of a 3D environment, making Internet real time transmission possible. Elementary little bricks can be either single elements or very complex aggregates. Whole buildings can be taken and used (as the Eiffel tower or the Empire State Building), as well as parts of them (as porticos, arches, portals) or single elements (as friezes, capitals, simple bricks). Every brick is ‘intelligent’, that is it can fit any particular application. Not being a mere collection of fixed data but a proper program, a portico can, for instance, enlarge or stretch itself to suit the desired scene. The environment beung a series of references to the basic collection of elements, it can improve automatically in time. In fact, if an author decides to use the Eiffel tower in a specific point, he stores the element's serial number and not its actual data. If the Eiffel tower ‘brick’ is improved or adjusted, all channels related to it are automatically improved, without any further work from the author. The non-profit model permits the distribution of this technology and of most of the 'intelligent bricks' in an open-source fashion. Protection of intellectual property rights is also possible and specific techniques are applied when necessary. Everybody can use the 'construction box' and anyone is welcome to add to it. Tools and software for these operations are freely available on this site.