Empire of Horses

John Sutter: I don't think many in the United States, especially, but maybe even in Western Europe also understand how much there is buried on the Eurasian step. How many tombs? No one knows. They run from north of the Black Sea across present day southern Russia and Kazakhstan into Mongolia and southern Siberia. We have just, like you said, maybe hundreds of thousands of these tombs. So it's archeology and let's just call it tomb excavation on a massive scale. But think about what they learn.