Today I was looking at different Airports, mostly Heathrow, to give me more of an idea of how an airport should look like. I even found a map to an idea of the layout of the airport
But while looking at the control towers of the Airport I discovered that there are different shapes to them. For Heathrow it has a slim pole with a box on top, however other control towers are pretty fancy and nice to look at.
I also look at the shape of a plane for my airport.