An expansive ancient city has been unearthed in central Asia , shedding light on the area's industrial history and ranking as "one of the most remarkable archaeological discoveries in this region for decades," according to the lead author of a landmark new  report  on the site. The report, from researchers at the United Kingdom 's Durham University and University College London as well as Kazakhstan 's Toraighyrov University, offers the fullest picture to date of what Semiyarka, the "City of