Visit any place available in Street View by entering a location, drag the map to browse around and drop the little guy on a road. It works best in environment with large buildings surrounding the streets. Some locations need a little more imagination than others.
This experiment using an undocumented part of Street View, the depth data. With that a depth map and a normal map is generated, which can be used in the shaders and to plot geometry and sprites in (almost) the correct position in 3d space.
Tech used in the demo: