Boing Boing links to Los Angeles Mapped, the online version of an exhibition of historical maps of Los Angeles on display through January 2007 at the Walt Disney Concert Hall. The maps on display are diverse in both subject matter and style: from a railroad system map to a movie-star map to a paper placemat.

But Xeni is even more enamoured with the “obsessively illustrated genius” of Jo Mora’s hyper-detailed 1942 Map of Los Angeles (at right), which you can view in several versions: small, zoomable, and friggin’ huge (4.6 MB).