Quake maps for tourists

The Quake 3D graphics engine is a really nice piece of software -- why waste it on games? Every major city should fund the creation of a (largish) Quake3 level that is a replica of the interesting areas of the city. The city-Quake-map would be available for tourists to use for walk-throughs (or fly -overs) of the city, to get them better acquainted with how the city is layed out, on a visceral level. The Quake map would be made available on line, as well as on kiosks in the lobbies of hotels, airports, etc. I think many people would find it much easier to get oriented by taking a virtual walk- through than by staring at a 2D block-abstraction and trying to translate that back to real-world directions.

Once the basic map was created, cities could get creative, adding helpful "native" characters to the level, voice-overs, multi-user (say hi to the other tourists ;^)), easter eggs, etc. I would imagine most cities would disallow weaponry though, since that isn't the kind of image they want to project. (well, maybe in Texas ;^))