Origin: S.T. Coleridge's modification, in the poem “Kubla Khan” (1797), of Xandu (17th century spelling), modern Shangtu, the site of Kublai Khan's summer residence in SE Mongolia
Mongol city founded by Kublai Khan, 1625, Anglicized form of Shang-tu. Sense of "dream place of magnificence and luxury" derives from Coleridge's poem (1816).