No, the Sunset Marquis is a hotel. I seem to recall it had a rowdy reputation, but Olivia seemed fine with it. She was young and scared to be so far from home and one night she heard gunfire from outside.

OT: I couldn't believe she didn't write about Andy Gibb and/or the Bee Gees. She only mentions John Denver in passing (they did a fine duet on "Fly Away").