It's an architectural giggle - extreme Art Deco, Spanish Colonial Revival, Monterey Revival, elaborate Italianate monsters - and fountains and statues, hidden gardens and fantastic ironwork and detailing. It's a bit off the beaten path, but rather wonderful.
The most famous building in the general area is the Art Deco Sunset Tower Hotel up there on the Sunset Strip (8358 Sunset Boulevard), back to its original name after being the Argyle for a bit - 1929, architect Leland A. Bryant. It's very famous, in a good number of films, and once home to Howard Hughes, John Wayne, Paulette Goddard, Zasu Pitts, and that famous gangster with the great name, Bugsy Siegel. It seems everyone lived there. The link will tell you more. A few other photos of the building are here and here, and in the January 2006 issue of Travel and Leisure there's a feature article here (PDF format) that's says it is one of the best hotels in the world, or may be.
Bryant designed other snazzy buildings in the area, and they are in the North Harper Avenue Historic District. Below, Sunset Tower with his Romanesque Villa (1928) in the foreground, and Sunset Tower as seen from his Harper House (1929).