There was a post about it some time back. Searching the archives I found this thread:

http://www.thechipboard.com/cgi-bin/tcbarc10/tcbarc10.pl?read=317471

Read the message and James L. Perlowski's response:

"Yes. The second one located within the Silver Palace closed when the Palace closed and became the Carousel. It was in the basement but the food was nowhere as good as Cosmos Underground. grin
Best, Mr."P"