Lowered the height of the Terminal building, created a nice flagpole and a space traffic control tower. I can see how oversized the terminal is, so I made it smaller in height. Removed excess hangars. Still wondering where to place the space traffic control tower, as it is small. Tested in Orbiter 2016 but since the building is basically multiple hangars, it is disformed due to the terrain. Don't know what I am really doing, but I think it is working.
This many pads and this much big building? (5km+). Maybe one day spacetravel became so popular.

The entrance and gate seems reasonable compared to airport pics.

This may be hard to interpret but basically, there is a gap between the window/jetway and the seating area, where the ticket checking happens during boarding. In Delhi airport, the gates are below the seating area, so you would take a ramp downwards to the jetway after checking tickets.
In Washington Dulles, instead, it is basically same level with a seperate glass hallway.

The new space traffic control tower. I don't really know where to put it, so I put it in the middle of the building. I found a way to do stacking by knowing that it will appear stacked if one of the diameteres are bigger than other. In reality, they are clipping inside each other, like a telescope.

The SpacePort in Orbiter 2016. This is what I meant by the "breaking"

I chose to put this base in the Korelev Crater. I chose this because the approach/take off path involves skimming past mountains at high speeds. I reached orbit and skimmed past the surface just 200m above at orbital velocity, which was very exciting.