Vauban Fortifications are a series of military structures designed by the French engineer Sébastien Le Prestre de Vauban in the 17th century. These fortifications are characterized by their star-shaped designs, which allowed for better defense against attacks. They often included features like bastions, moats, and thick walls, making them highly effective in protecting cities. Many of these fortifications were built in France and its territories, and they played a crucial role in military strategy during their time. Today, several of these sites are recognized as UNESCO World Heritage Sites, showcasing their historical significance and architectural innovation.