Wiang Kum Kam
To the south of Chiang Mai lie the remains of a 13th-century fortified city and a surrounding moat that had been submerged under mud and silt for centuries. Wiang Kum Kam had been built by King Mangrai, who lived there for only a brief period before founding Chiang Mai. Flooding appears to have submerged the city in 1524 and it disappeared from view until excavation works began in the 1950s.