DC Flyby

A well-illustrated pictorial map with with a rich information layer targeted toward tourists and other visitors to Washington DC, DC Flyby allows you to "fly" above a minimalized version of the  Capitol mall and other downtown areas, zooming in to various government buildings, museums, metro stops, theaters, hotels, and other locations of note. The map is part of the District of Columbia's online Visitors Resource Center. I'd love to see this approach for other cities, with more extensive linking, multiple layers of information that could be turned on and off ala Google Earth (i.e., maps for visitors, residents, traffic maps, density and demographic information, public transport availability, etc all on the same substrate).