Earlier quoted context omitted.
And I'm absolutely sure I wasn't: two different spots, both near military airbases, this one is somewhat longer than the Vyškov one. Personally drove on both of them, many times. Can't find an English source though: https://cs.wikipedia.org/wiki/Leti%C5%A1t%C4%9B_M%C4%9B%C5%9...
Hmmm is that the one with the windmill rest stop thingy nearby?
Not aware of a windmill. The one I originally referenced has a McDonalds these days :D