The Cultural Heritage Administration and the Inter-Korea Historian Association restarted the Manwoldae project for the excavation of the ancient palace site on July 22, that will continue until August 16. Manwoldae is an old palace site from the Goryeo dynasty (918-1392) located in Kaesong, North Korea. The archaeological site went through four-time excavations so far between 2007-2010 by a joint project team from the South and North, and the palace layout was identified and roof-tiles bearing inscriptions and cylindrical celadon were unearthed during the project. In 2011, there was an investigation and repair project as well to recover the damaged building sites and stonewalls by flood at the time. The resuming project is held on part of the western complex of the palace site, and conducted by the joint team of the National Research Institute of Cultural Heritage from the South and the Korean Central History Museum from the North. Manwoldae is the central palace of Goryeo that lasted 400 years. The palace's topographic features well in harmony with the entire palace layout have been highly recognized, exuding its splendid beauty and magnificence. The ancient palace was inscribed on the UNESCO World Heritage List last year as part of the serial property of Kaesong Historic Areas.