ozstamps suggestion of the SYD "tarmac tours" reminded me that AMS has a similar thing called "Schiphol World Tour" where they take you on a bus tour on the airside. It costs NLG 15 (about $8 USD). They run everyone through security check and load you on a bus which drives around slowly around the passenger and cargo terminals pointing out all sorts of things. Great for a close up look at the planes.

The approx. one hour tour, unfortunately, is only in Dutch (en mijn Nederlands is niet zo goed) but it was well worth it anyways.

FewMiles..