Portuguese Colonial Forts were military structures built by the Portuguese Empire from the 15th to the 18th centuries. These forts were strategically located along trade routes and coastal areas to protect Portuguese interests, especially in Africa, Asia, and South America. They often featured thick walls, bastions, and lookout towers to defend against attacks. Many of these forts, such as Fortaleza de São Jorge da Mina in Ghana and Fortaleza de Malaca in Malaysia, served as bases for trade and military operations. Today, several of these forts are recognized as UNESCO World Heritage Sites, reflecting their historical significance and architectural value.