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Photo: Sgnpkd, CC BY-SA 4.0 via Wikimedia Commons
North Korea's first UNESCO world heritage site. These tombs include that of King Tongmyŏng, the founder of the Koguryo dynasty who died in 19 BCE.
Goguryeo tombs, officially designated as the Complex of Koguryo Tombs, are tombs in North Korea. In July 2004, they became the first UNESCO World Heritage site in the country. The site consists of 30 individual tombs from the later Goguryeo kingdom, one of Three Kingdoms of Korea, located in the cities of P'yŏngyang and Namp'o. Goguryeo was one of the strongest ancient Korean kingdoms located in the northern and central parts of the Korean Peninsula and the southern and central parts of Manchuria. The kingdom was founded in the present day area of North Korea, and part of Manchuria around 37 BCE, and the capital was transferred to P'yŏngyang in 427 CE.
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Sinchon is the site of a massacre of civilians which is blamed on the Americans by the North Korean government (Historians outside North Korea believe the massacre was propagated by both pro and anti communist vigilantes at the time). Expect a fairly one sided view of history.