Luut, the Xiongnu capital, and the ancient cities of Mongolia
LUUTLuut · Longcheng
Read about:LuutKhar BalgasKharkhorumXiongnu heritage — UNESCO

Aimags and soums

Ulaanbaatar, 21 aimags and 330 soums. Each aimag page lists its soums and the ancient cities in it.