Stone pavement was already used in the first Roman roads! This is because at the time the material available and was available and within reach. Today, cobble stone and patio tiles, mostly appreciated and used for their decorative qualities. Natural Stone is distinguished by ease of maintenance, but it is important for color fastness. This means that they are under the influence of sun and rain hardly discolored; coating of algae disappear by itself at the first sunbeam. Natural Stone has a self-cleaning effect that is heavily undervalued, but is a very important, nice feature.