Kaesong, the capital of Koryo which was the first unified state of the Korean nation, is famous for many historical relics.
Among them is the relic of drainage facility in Mt Songak, which has been not recorded in such historical documents as History of Koryo , Sinjungdonggukyojisungnam (Revised Handbook of the Korean Geography) and Junggyongji , and not mentioned even in the preceding research data.
As a facility for draining in the Walls of Kaesong which is inscribed in the list of world cultural heritage in 2013, it is located on the northwestern wall near the summit of the hill westernmost of Mt Songak.
The tunnel-type facility, with the cross section of the shape of "ㅍ", a Korean alphabet, is in the centre of the wall facing south; its entrance is 93cm wide and 70cm high and the waterway is 6m long.
The slope of the waterway is peculiar; the two-thirds part from the entrance are inclined at an angle of 10 degrees and the remaining part to the exit is almost horizontal.
The tunnel becomes narrower toward the exit, and the floor is projected by 50cm outside the wall. The water is sprayed outside the wall by the force of the speed at the inclined floor and its horizontal flow.
This structure reflected the intention of the designers to drain water quickly and prevent the damage to the foundations of the wall.
The stone walls near the facility are very similar to the embankment and stone steps of Manwoltae, the site of the royal palace of Koryo. Such an elaborate wall cannot be found in other parts of the Kaesong Walls.
It has been confirmed that the facility was built elaborately soon after Kaesong became the capital of Koryo in the early 10th century.
It is a general practice to build a drainage facility in a lower part of a castle where water interflows. It is a rare example in the world that the artificial drainage facility in Mt Songak, not a natural one, was built near the summit of a hill.
A structure for defending the facility situated about 23 metres to the east is in a good state of preservation. Its construction method is the same as the one of the wall near the drainage facility.
The drainage facility is one of the most typical historical relics in the Democratic People’s Republic of Korea for its long history, peculiar designing and outstanding building methods.
Kim Chol, researcher at section for study of tangible heritage of Korea National Heritage Preservation Agency
More From Naenara (En)
The resourceful and talented ancestors of the Korean nation had already observed astronomical and meteorological phenomena since
April 18, 2024
The resourceful and talented ancestors of the Korean nation had already observed astronomical and meteorological phenomena since
Our factory is not so big, but it is well known across the country for the variety of its products and their quality. Such reality
April 18, 2024
Our factory is not so big, but it is well known across the country for the variety of its products and their quality. Such reality
Among the folk games of the Korean nation is yut game that showcases the wisdom and talents of the Korean people and reflects
April 18, 2024
Among the folk games of the Korean nation is yut game that showcases the wisdom and talents of the Korean people and reflects
The chemical industry sector has overfulfilled the nitrogen fertilizer production plan by five percent in the first quarter of the
April 18, 2024
The chemical industry sector has overfulfilled the nitrogen fertilizer production plan by five percent in the first quarter of the
Yevgeny Shestakov, vice-minister of Foreign Affairs of Belarus, and his party arrived in Pyongyang on April 16. KCNA
April 18, 2024
Yevgeny Shestakov, vice-minister of Foreign Affairs of Belarus, and his party arrived in Pyongyang on April 16. KCNA
All people of the Democratic People’s Republic of Korea paid the highest tribute and eternal glory to President Kim Il Sung on
April 17, 2024
All people of the Democratic People’s Republic of Korea paid the highest tribute and eternal glory to President Kim Il Sung on
In July one year, the respected Comrade Kim Jong Un said to officials that education should be taken as an important criterion
April 17, 2024
In July one year, the respected Comrade Kim Jong Un said to officials that education should be taken as an important criterion
Camping of schoolchildren has started at the Songdowon International Children’s Camp on the occasion of the April holiday, one of
April 17, 2024
Camping of schoolchildren has started at the Songdowon International Children’s Camp on the occasion of the April holiday, one of
A concert was given by the National Symphony Orchestra at the Moranbong Theatre on April 15, the 112th birth anniversary of
April 17, 2024
A concert was given by the National Symphony Orchestra at the Moranbong Theatre on April 15, the 112th birth anniversary of
Foreign artistes taking part in the 33rd April Spring Friendship Art Festival put on stage colourful numbers reflecting their
April 17, 2024
Foreign artistes taking part in the 33rd April Spring Friendship Art Festival put on stage colourful numbers reflecting their
The Fifth National Conference of Mothers was held in the capital city of Pyongyang in December last year and a performance was
April 17, 2024
The Fifth National Conference of Mothers was held in the capital city of Pyongyang in December last year and a performance was
DPRK wrestlers Kim Ji Hyang and Ro Yu Chol bagged gold medals at the 2024 Asian Wrestling Championships. The championships, which
April 17, 2024
DPRK wrestlers Kim Ji Hyang and Ro Yu Chol bagged gold medals at the 2024 Asian Wrestling Championships. The championships, which
A doctorate in socio-politics of the Democratic People’s Republic of Korea was conferred on a department head of the National
April 17, 2024
A doctorate in socio-politics of the Democratic People’s Republic of Korea was conferred on a department head of the National
J. O. Mamah, king of the Umuozzi Community of the Federal Republic of Nigeria, presented President Kim Il Sung with the Chair of
April 17, 2024
J. O. Mamah, king of the Umuozzi Community of the Federal Republic of Nigeria, presented President Kim Il Sung with the Chair of
Agricultural workers of the Ryonghung Farm in Thaechon County, North Phyongan Province of the Democratic People’s Republic of
April 17, 2024
Agricultural workers of the Ryonghung Farm in Thaechon County, North Phyongan Province of the Democratic People’s Republic of
The Democratic People’s Republic of Korea embassy in Beijing hosted a reception on April 12 to celebrate the 112th birth
April 17, 2024
The Democratic People’s Republic of Korea embassy in Beijing hosted a reception on April 12 to celebrate the 112th birth
The participants in the international seminar on the Juche idea laid flower baskets before the statues of President Kim Il Sung an
April 17, 2024
The participants in the international seminar on the Juche idea laid flower baskets before the statues of President Kim Il Sung an
A joint national meeting of the Korean Children’s Union organizations took place at Changdok School in the capital city of
April 16, 2024
A joint national meeting of the Korean Children’s Union organizations took place at Changdok School in the capital city of
One May day in Juche 105 (2016), the respected Comrade Kim Jong Un viewed textbooks for kindergarteners, primary and middle school
April 16, 2024
One May day in Juche 105 (2016), the respected Comrade Kim Jong Un viewed textbooks for kindergarteners, primary and middle school
There took place a performance of art groups of university students at the Youth Park Open-Air Theatre in the capital city of
April 16, 2024
There took place a performance of art groups of university students at the Youth Park Open-Air Theatre in the capital city of
More Articles