The Coudenberg Archaeological Site is located in the heart of Brussels, Belgium. It represents the remains of a former royal palace and the medieval city of Brussels, dating back to the 12th century. The site features various structures, including walls, streets, and foundations, which provide insight into the urban development of the area. Excavations at the Coudenberg have uncovered artifacts that reveal the daily life of its past inhabitants. Visitors can explore the underground ruins and learn about the history of the site through guided tours and exhibitions, making it an important cultural and historical landmark in Belgium.