Lang Son is a picturesque city in northern Vietnam, known for its stunning mountainous landscapes and rich cultural heritage. It serves as a gateway to the border with China and is famous for its vibrant markets, traditional architecture, and historical sites. The city is home to the famous Tam Thanh Cave and the historic Lang Son Citadel, which reflect the area's significance in Vietnamese history. Visitors can experience the unique customs and traditions of the local ethnic groups, making it a culturally rich destination.
