I was in Amsterdam’s Schiphol airport on the way to Norway and I saw this in the toilet. The text says:
In this surprising toilet you will find a number of landmark buildings in the Netherlands, such as the Schiphol Amsterdam Airport Traffic Control Tower, that was built in 1991 as the world [sic] highest air traffic control tower—although it stands on ground that is 5 meters below sea level! The eye-catcher of the tower is the Visual Control Room that allows the traffic controllers to overview an area of 9 kilometers in diameter.
Te tower measures 101 meters.