I have to disagree with Rye and others about LA. Yes, there are many valid criticisms of the city, but I have never experienced so much energy anywhere else in the world, and I've lived and travelled through the US, Europe, and Asia (coincidentally, also in the last 10 years or so.) I'm not sure what it is. I think that it is the hot dry weather combined with the industrial buzz of the city (it is *very* industrial and industrious, something you have to experience to understand,) combined with people from all over the world coming to try to "make it". There is just a frenetic energy that I've felt nowhere else. I moved away to provincial little Boston, and wouldn't mind at all moving back.
Speaking of back, back on topic, the Cooper building houses a lot of major showrooms representing everything from Costume National to Rogues Gallery. Occasionally, there are sample sales and the showrooms open their doors to the general public, but by-and-large, the showrooms work on an appointment only basis.