The International Friendship Exhibition is a large museum complex located at Myohyangsan, North Pyongan Province, North Korea. It is a collection of halls that house gifts presented to former leaders Kim Il-sung and Kim Jong-il from various foreign dignitaries. The protocol of gift-giving is well established in Korean culture. Built in a traditional style, the halls opened on 26 August 1978 and consist of over 150 rooms covering a total area of between 28,000 and 70,000 square metres. The building offers the impression that it has windows, though it has none. According to a local legend, Kim Jong-il built the International Friendship Exhibition in three days; however, actual construction took a year. Currently, estimates of how many gifts the exhibition holds vary between 60,000 and 220,000 gifts. The setting of the museum in the Myohyang mountains, near the Pohyon temple, was the subject of a poem by Kim Il-sung, which he later chanted from the balcony of the International Friendship Exhibition on October 15, 1979.