Do we have the right to judge cultures?

My dad recently came back from Afghanistan where he had a project to do. He was showing me pictures of the places he travelled to and it was interesting and mind-blowing to compare living in Europe and in the Middle East. Different houses, language, food, clothes, habits, religion. See, Europe is a small continent where we have a lot of diversity between all the countries but in the end we are still very European and by that I mean similar in certain ways. We have a common history that binds a lot of nations together. But then as soon as you change continents you see what the world has to offer. You find entirely different cultures altogether.