The Fortaleza de São Jorge, or St. George's Castle, is a historic fortress located in Lisbon, Portugal. Built in the 11th century, it served as a royal palace and military stronghold. The castle offers stunning views of the Tagus River and the surrounding city, making it a popular tourist attraction. The fortress features well-preserved walls, towers, and a charming courtyard. Visitors can explore its rich history through informative displays and enjoy the beautiful gardens. The Fortaleza de São Jorge is an important symbol of Lisbon's heritage and a key site for understanding the city's past.