Dzenkuje bardzo.

Shame on me: I played the video once, and It passed so fast that I made a confusion that cannot be forgived. I saw Poland… And it was Belarus!!! No excuses…
I’m so sorry! You will think: “oh, once again, a French guy who doesn’t care where the hell is Poland!” Please, beleve me: I know where it is and its shape, but it was really too fast! And after, when I saw OSM on Warshawa, I was really impressed: you have a lot of buildings, for example.
But OK, Warshawa is not whole Poland…

Thank you for all your answers and “little” corrections… I will die less fool… and will ask to osm-belarus!