Discovered: The Great Wall of Siberia Dating to 1st millennium BC
Giant ramparts guarded Altai Mountains against attack from the north, says leading archaeologist Professor Andrey Borodovsky. The wall complex - now almost hidden to the naked eye - is believed to date from a long era that also saw such constructions as the Great Wall of China and Hadrian's Wall.
United Kingdom Novosibirskaya Oblast Anna Liesowska Andrey Borodovsky Institute Of Archaeology Siberian Times
Source: ancient-origins.net