Prague, I’ve never seen a Polish restaurant here- though I’m sure it exists. And checking Google maps I can find 1 Moroccan restaurant here.
Also, there is a fair amount of good Polish food, its definitely far better than Czech food. But it’s not at all comparable to Indian, Ethiopian, Chinese, or Korean foods which while they all exist in Prague(except Ethiopian) are generally much worse than in the US, unless you happen to know the basically secret menu items to order that aren’t adapted to the local taste. The one thing I will say is far more abundant for quality than in the US is Vietnamese food here. And German Kebab but if I include fast food then I’ll start ranting about how bad the pizza is here.