CityTomography

"CT, City Tomography, is a project to reconstruct

 visible or invisible aspects of urban spaces as a
 three dimensional “information city”
 and explore it just like a computerized tomography
 (CT) of the human body.  CT will provide
 information about the city by the way visitors
 cannot perceive from a physical urban space. It will
 enhance an overall image of the city through a
 reciprocal relation between a place and information."

made by Fumio Matsumoto, Akira Wakita (http://www.sfc.keio.ac.jp/~wakita/index.html

more modells and pictures like this above at http://www.plannet-arch.com/ct/

see MixedReality