Résumé dans la langue de publication, traduction non disponible An ultra-high multi-story building wherein two to four 50-story tower-shaped very high multi-story building sections, each of which has a diameter of about 50 m (a floor area of about 2,000 m**2/story) are assembled one upon another, whereby one ultra-high multi-story building (1) having about 200 stories, two ultra-high multi-story buildings (2) having about 150 stories and one ultra-high multi-story building (3) having about 100 stories are constructed, sky lobbies (4) permitting the traffic between the buildings are provided at intervals of about 50 stories, four shuttle elevators (5), (5) reaching these lobbies (4) are provided, and an observation platform/air garden (sky dome) (6) is formed on the roof of the ultra-high multi-story building (1). In the respective ultra-high multi-story buildings (1), (2) and (3), there are provided main facilities such as offices, hotels, living quarters and the like. (see diagramm 1 page 0)