Sungnyemun, also known as the Namdaemun Gate, is a historic city gate located in Seoul, South Korea. Built in the 14th century during the Joseon Dynasty, it served as the main southern entrance to the city. The gate is an important symbol of Korean heritage and has been designated as a National Treasure. The structure features a unique architectural style, combining traditional Korean design with elements of military fortification. Sungnyemun was restored after a fire in 2008, ensuring its preservation for future generations. Today, it stands as a popular tourist attraction and a reminder of Korea's rich history.