On the occasion of the 13^ Architecture Biennale, Moatti-Rivière Architecture Studio will present at Lightbox Space, the project of the refitting of the 1st floor of the Eiffel Tower in Paris. The project offers an improved experience of the Eiffel Tower and Paris, an entertaining sensory experience, a journey of the senses and knowledge. New buildings and entirely redeveloped public spaces to make the Tower’s 1st floor once again one of Paris’ most spectacular and attractive locations, 57 meters above the city. The Eiffel and Ferrié pavilions house the functional entities. They are nestled between the pillars of the Eiffel Tower. Gustave Eiffel designed these powerful pillars on an inclined plane to project the tower 300m into the air. Each floor is a link between the pillars. We have imagined pavilions that are influenced by these pillars. They are subject to their forces in action. They are therefore inclined in two planes. This new geometry links them intimately to the Tower. Their tangible outlines are rooted in the geometries of the pillars. The heart of the 1st floor of the Eiffel Tower is an open space. It is a small urban centre suspended 57 meters above the city’s ground-level. It gives a close view of the city and of the Tower itself. It is a knowledge space where the inside of the «Tower object» can be explored. Surrounding this open space, the opaque floor has been partly replaced by a glass floor and the grille of the balustrade has been replaced by glass. The glass, protective, gives the experience of walking above the corbelled structure of the first floor thus revealed.