In the heart of Old Havana, Cuba, lies the picturesque Plaza de San Francisco de Asís, a must-visit destination for any traveler. This historic square is surrounded by stunning colonial architecture, including the beautiful Iglesia de San Francisco de Asís, a 16th-century church that now serves as a museum. The plaza is also home to the famous Fuente de los Leones, a striking fountain surrounded by four lion sculptures, and the impressive Lonja del Comercio, a former stock exchange building.