One unifying timber roof encompasses all the galleries like the sky and clouds that covers our environment and completes the biosphere. Each of the natural environment galleries are designated as individual pavilions, made from separate building materials and construction methods. The sequential flow through the museum is simple. Visitors from the public area enter the museum by rising up the central escalator to the vestibule and move on to begin the experience from the top of the Mountain Gallery. From here, all visitors experience the gradual descent through each of the galleries.