Planimator is a project by Even Westvang. He uses WebGL to visualize the history of Oslo on the map while preserving the spatial and temporal properties. “The design highlights the continuous transformation of the city, areas of intense development and the sheer workload of the planning authority.”

The background map is generated from OSM and Three.js is used as the WebGL framework.

For technical reasons, try this in a very recent version of Chrome/Chromium/Canary with a proper video card.