Heunginjimun Gate, also known as Dongdaemun, is one of the eight gates of the ancient city wall of Seoul, South Korea. Built in 1396 during the Joseon Dynasty, it served as a key entry point into the city and played a significant role in its defense. The gate features a unique architectural style, combining traditional Korean elements with military functionality. Today, Heunginjimun Gate is a popular historical site and tourist attraction. It is surrounded by a vibrant area known for its shopping and cultural activities. The gate is also part of the Seoul City Wall, which offers scenic walking paths and views of the city.