Within the game's files are three unused cities: Oslo (Norway), København (Denmark), and Stockholm (Sweden). Despite being unused, they appear to be fully playable if hacked into the game, have their own musical intros, and have batches of trivia questions like all the other cities.
The data for these cities seems to be left over from the original Globetrotter, suggesting they were planned to return like the other reused locations.

Within the game's files are several "trivia correct" sound effects for cities exclusive to the original Globetrotter. This could possibly mean that the sequel was made from the data of the original game.