The Castillo de San Felipe is a historic fortress located in Cartagena, Colombia. Built in the 16th century, it was designed to protect the city from pirate attacks and foreign invasions. The fortress features impressive walls and a strategic location overlooking the harbor, making it a key military site during colonial times. Today, the Castillo de San Felipe is a popular tourist attraction, showcasing its well-preserved architecture and rich history. Visitors can explore its tunnels, ramparts, and panoramic views of Cartagena, providing insight into the city's colonial past and its significance in maritime defense.