of the project. >> it appears as if every sense, all of your senses have been taken into consideration as this structure is coming together. >> yeah, yeah. >> what is feels like, what it smells like. >> or even the sound. imagine the sound when you walk in a place and you hear your own steps. >> he's using natural light as a structural element in the look and feel of the building. he said the use of light is also a powerful symbol to bring hope and vitality to a place once covered in darkness. he showed us more in a 3d virtual video. >> and these are the study of the movement of the sun around the building and in the building which i think is very, very important. here you see the main hope. >> this is overwhelming, almost. >> and look at how the roof opens. it's important to see that. in order to avoid the greenhouse effect we have to have a