Casey lures Malstrom to the headquarters of a fake corporation, "World Resources, Ltd." that the IMF has set up. An establishing shot shows that the headquarters has an unusual "inverted double pyramid" design, in which each lower floor gradually becomes wider than the floor below it until the middle level, after which each floor becomes proportionately smaller for the same number of stories. This building is actually the library on the campus of the University of California at San Diego as it looked in the early 1970s when this was filmed. (It can also be seen in the pilot of "Simon and Simon," which actually was set in San Diego.)
The restaurant Apollo's Golden Chariot was also a restaurant setting in an earlier show this season titled "Leona".