McDonald's are everywhere in Europe and they are one and a half to twice as expensive as in the US. Most but not all menu items are available.
Holy cow! How come so many thumbs down? I have eaten at McDonald's all over Western Europe, including Zurich and Paris, and they were all more expensive than here at home. Switzerland is one of the most expensive countries I have been to - London is also very pricey. I only saw a few Burger Kings in Europe (less than five), and neither of the other two.
I have received more thumbs down on this one answer than on any other I have ever given, even though I speak from experience. What sort of trolls lurk here? Those who obviously do not like the fact that I have eaten at McDonald's in Europe. One stop per city is not really that much, people. I have eaten the native cuisine many more times. Quite frankly, there were several times that McDonald's would have been better, and I was not alone in that opinion.