Google added 3d trees throughout London in anticipation of the royal wedding, and now the day is here! To go along with the tress and the thousands of 3D buildings in London, Google has created an excellent 3D Tour of the procession route that you can view using the Google Earth plug-in or in Google Earth with this KMZ file.
They've also built an interactive map that allows you to view some of highlights along the route, or you can view it in this EarthSwoop that I've created using those locations.
Finally, here is the video Google created to show off the processional route if you'd prefer to see it that way:
I'm not getting up that early in the morning to watch the ceremony, but I know quite a few people who are as it will be quite a memorable event. Are you one of them?