Kumsusan Palace of the Sun, formerly the Kumsusan Memorial Palace is a mausoleum located near the northeast corner of Pyongyang. The palace was built in 1976 as the Kumsusan Assembly Hall and served as Kim Il-sung's official residence. Following the elder Kim's death in 1994, Kim Jong-il had transformed the building into his father's mausoleum. It is believed that the conversion cost at least $100 million. Inside the palace, Kim Il-sung's embalmed body lies inside a clear glass sarcophagus. Kumsusan is the largest mausoleum dedicated to a Communist leader and the only one to house the remains of multiple people. It is fronted by a large square, approximately 500 metres in length.