Travertine is a sedimentary polycrystalline rock obtained by deposition of calcium carbonate from mineral and thermal springs or running water, rich in calcium. Travertine has striped structure, but it may encounter in the form of concentric circles, it is brittle and comprises pores, its density is low and non-uniform. According to the place of occurrence, travertine can be distinguished as travertine from springs, watercourses and caves. Varieties in color are white, beige, yellow, cream, tan, which depends on the impurities and minerals. It may contain limestone, clay and other sediments. Travertine is one of the most wanted natural stones in modern architecture and building, as a material for coating the exterior and interior walls, floors, facades, decorative elements. In ancient times, travertine was used for the construction of temples, aqueducts, monuments, resorts, baths, amphitheaters such as the Coliseum and many other important historical buildings and places such as the colonnade of St. Peter's Square in Rome, the dome of St. Peter's Basilica, the Sacre Coeur in Paris, the Getty Center in Los Angeles, "Shell-Haus" in Berlin and many more.