This project is a complex of art studios for artists before they become famous. It is a renovation project that makes a huge abandoned gas tank into a building. This gas tank could rotate and rise driven by air pressure in it. So after rotating up, this tank could have an additional space for exhibition. The logic of the design is simple, to insert some new structures hanging the studios along the inside surface of the tank, and form a circulation for the visitors to go up, see all the studios and enter the hidden exhibition space. Due to the need of stable and neutral light and the need of displaying their art works for potential buyers, the windows are facing toward center and share the diffuse light from the central opening on the roof of the tank.