We have an original McD in Long Beach but the arches were removed and I'm guessing at the insistence of corp because they stood for a long time under the name of Tommy's burgers. Tommy's is famous in L.A. There might be (at least was) a line at midnight.
4315 Anaheim St. 90804 if you want to see the LB location. The Tommy's in L.A. is the only one of 32 now that is open 24 hours.