The USSR proper had some very interesting periods, in terms of architecture. Like all countries that could start basically from scratch, they were free to experiment and dream; some of those dreams turned into nightmares, but others did advance the state of the art.
Russian influence on the region is a related but separate issue, but let’s not paint central Europe as some sort of perennial victim.
There's always Berlin Brandenburg, which should open any day now.[1]
[1] https://en.wikipedia.org/wiki/Berlin_Brandenburg_Airport
The other West Berlin Airport - Tempelhof - was marvellous, though. Built during Weimar Republic years when air travel was for the wealthy few, the terminal was (and is!) as monumental as a palace.
https://www.fotocommunity.de/photo/im-flughafen-tempelhof-ho...
I know that it probably wouldn't work as a modern airport but I wish that there had been a way. It's so weird and... Berlin. Love it.
It probably would have been cheaper to flatten that damn thing in 2011 and start from scratch.
It's a fascinating story, though, of hubris, corruption and about what happens when you try to change an existing massive structure in the middle of construction.
One of the funnier stories was the first attempt to open it. Fire management systems were non-existant (actually they were there. The components were piled high on pallets, alas with no working plan to implement them).
So airport management suggested to hire 800 minimum wage folks. Supply them with cell phones (a total no!no! For emergency response), folding chairs and hi-viz vests to then distribute them strategically throughout the airport.
If they noticed something suspicious, like smoke or fire, they would call it in.
I leave it up to your imagination what the higher ups of the fire brigade thought of this brilliant plan. Especially with the memory of a catastrophic fire at Dusseldorf airport not too long ago.[1]
[1] https://en.m.wikipedia.org/wiki/D%C3%BCsseldorf_Airport_fire
Yes. A total disappointment. And the "main" terminals are the worse, the low cost ones are less crappy.