This could be a job for Lorendoc and 3940dxer.
The ruins of the Spider Pool, somewhere in the Hollywood Hills.

Jacy Young at
http://laist.com/2008/04/19/every_city_has.php
http://laist.com/2008/04/19/every_city_has.php
http://laist.com/2008/04/19/every_city_has.php
This is a
must read for anyone interested in
noirish Los Angeles.
Don't skim through the article looking for the address...it's never given.
http://laist.com/2008/04/19/every_city_has.php
-sunlit path leading to the ruins.

Jacy Young at
http://laist.com/2008/04/19/every_city_has.php

Jacy Young at
http://laist.com/2008/04/19/every_city_has.php
A wasp in the spider's web. (how cool is that!)

Jacy Young at
http://laist.com/2008/04/19/every_city_has.php
-one last haunting image.

Jacy Young at
http://laist.com/2008/04/19/every_city_has.php
This article was brought to my attention by a fellow forum member. He was leery of posting about it.
He worried about the mystery site being found out and subsequently covered in graffiti and trash.
I certainly saw his point. We discussed it, and decided to go ahead and do a post since the exact location is never given.
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