It's not very usual (and even normal) to be snapping pavements... But I did it... This is the so called "Portuguese pavement". It's built up in a very artistic way. The stones with two colours ( I don't exactly know what kind of stone that is) are set together in such a way they make a pattern. Here it's very simple: you only have curves and parallel lines but it can be more decorated. . I'll try to get one of those more decorated ones to publish here soon.