Limestone is a natural stone that has been used in architecture for thousands of years. It is a sedimentary rock that is formed by the accumulation of calcium carbonate over time, often in marine environments. Limestone is prized for its durability, versatility, and natural beauty, which makes it a popular choice for a variety of architectural applications. It is commonly used in building facades, walls, flooring, and decorative elements, and can be carved or molded into intricate designs. Limestone is available in a range of colors, from white and beige to gray and black, and can be polished or left with a natural, textured finish. Despite its many benefits, limestone is also a relatively soft and porous material, which requires regular maintenance to prevent staining, weathering, and other forms of damage.