Analysis of information sources in references of the Wikipedia article "Kaesong Chomsongdae" in English language version.
A replica of Goryeo Cheomseongdae built at Manwoeldae of Gaeseong, installed with a HonCheonUi (a celestial globe) and sundial, is on display. Goryeo Cheomseongdae is estimated to date back to the Goryeo era when the kingdom had a separate agency responsible for astronomic and meteorological observation.
Chok: Measuring unit used in the old East. One chok corresponds to 30 cm today.