Wonder how Genghis Khan would feel if he found out that his Chinese neighbors had added a wall to his territory? Good thing he didn't live long enough to find out.

The breakthrough discovery was made by British explorer William Lindesay, who was first captivated during his first trip to the region in 1986. For years he made inquiries about a possible extension of the wall in Mongolia.

He then sought help from a Mongolian geographer named professor Baasan Tudevin, who knew of several such structures in the Gobi desert. An expedition was then planned out using Google Map, and Lindesay's team set out about 25 miles from the sensitive Chinese-Mongolian border.

Two days into the exploration, they eventually came across what is thought to be the first section of the Great Wall to exist outside of China: a 62-mile-long arm made mostly of shrubs and dirt. Carbon testing placed the remnants in the 11th or 12th centuries, meaning that this wall pretty much went unnoticed for the past 1,000 years. He explained to the Irish Times:
“Overall, the Wall of Genghis Khan in Ömnögovi appears to be a missing piece of the Han Dynasty Great Wall which was routed through the heart of the Gobi around 115BC,”
One theory is that Ghenghis Khan’s third son, Ogedei Khan, had built the wall to put a stop to gazelle migration from China.