In a part of the city where the rigid grid was applied after the self generated housing system, many of the building of the block are imprisoned in the interior of the block. Due to this it is needed to open the block to the public. The revitalization of the interior of the block is done by two “friendly aliens”. One of them can be experienced only through the physical walkthrough since it is organizing the public spaces in the block. The second is a building with multiple bubble-like form, hosting a cultural exhibition space.