Limestone is a widespread sedimentary carbonate rock. It is widely used in construction as building material or ornamental stone. Thanks to his unique characteristics, this stone is wide applied for interior and exterior works, art and sculpture. The Vratsa limestone is well known and often used from architects worldwide for projects, for facades, architectural details, flooring, stairs, wall claddings etc. The material is relatively homogenous, resistant and looks very nice alone or in combination with other materials such as wood, glass or metal.