In this paper, I question architecture in relation to the notions of “immaterial” and “virtual”. The cityscapes where architecture is placed become increasingly liquid, marked by immaterial structures, flows and landscapes. How does architecture fit critically in this scenario? I will consider two ways to discuss the role of the immaterial related to architecture: first, in the case of media buildings; secondly, in those forms of architecture which imbibe immateriality, focus on and represent it, as in the Sendai Mediatheque (Ito) and in the Fondation Cartier (Nouvel).
