The tube is a project located between busy roads and gives new life to neglected urban space. It's a concept of healing space under and above the Paris metro viaduct. Thru the structure cross metro at high speed. It takes less than 7 seconds to pass the 130 meters healing tube. The choice of location is a contrast of metro speed, fast peace live, stress, and the healing purpose of the structure. The purpose of the design is a space to feel nature in the proximity of an urban context. The tube heals thru the creation of different environments like forests, water pounds, forest glades, and zen garden. The healing tube above the busy city provides a place to escape from city life and focus on well-being.