Edinburgh Waverley is probably worth a mention on that front, not only is it huge but the platforms are arranged unusually as the station consists of an east facing terminal and a west facing terminal mashed together with through platforms on either side making it it almost ring shaped.
The platforms are numbered in a clockwise fashion so platform 20 is next to platform 1. It probably doesn't make much sense if you only see it from ground level but look at it on a map and it's perfectly obvious what is going on.