Here is an illustration from issue fifty-one of the UK Masters of the Universe comic. In this piece we see the Heroic Warriors preparing to head back home, having saved the day once again. You can see on the horizon that "home" is illustrated as the Three Towers. This would appear to be a mistake on the part of the artist. Even though the Three Towers were an important part of the comic by this point, the Heroic Warriors' primary base of operations was still the Royal Palace, as it was at the very beginning of this issue!
(click on the image to see it at full-size)