Zurich is a spotter's dream. You probably can't get airside (except with an airside tour), but then again: On which major European airport is that possible? There are great spots in the vicinity of the airport—it's built on perfect terrain as you have a good view on the runways from virtually any direction. When I was there police were friendly. No hassling at all. Spotting is actually encouraged: There are designated viewing areas like at the heliport, on the northern perimeter & of course the terrace. Now if only a few more 747s & MD
-11s would come ...
Even a broken clock is right twice a day.