Website listings of interest to users in Mongolia. Browse top quality websites in this TopWeb.Directory category. Mongolia is a country in Asia with the capital at Ulaanbaatar. The country surface is: 1,564,116 sq km. Border countries and border surface: China 4,677 km, Russia 3,543 km. Languages: Khalkha Mongol 90% (official), Turkic, Russian (1999).