I read in article that Beijing has a big modern facility called Beijing Planning Exhibition Center. Since Beijing is predicted to face a big challenge with the rampant growth and environment degradation, the city has to settle with the problem of transportation to waste-water management. The facility itself is a modern three-story building featuring all sorts of high tech displays. Each of the floors has a massive aerial and model recreation of greater Beijing in coming years, showing all the detail buildings, homes, or whatever across the city including the infrastructure. Every little thing such as railway, air pollution, highways, subway lines, tunnel, etc has been included in the modeling. What a great planning ahead! Look at the photographs, you will be amazed of the built models. Read here.