I've been in Poland for two autumns and it's lovely to see the streets dyed different colors with the changing of the leaves. Beyond that the mountains are full of leaves. I think it's the most beautiful season once the first snow falls on the leaves and changes the black soil and if it doesn't snow very much everything just looks gray. But autumn in Warsaw's parks is beautiful! It's very cheerful and colorful, brown, yellow, red and green, love it!