From the top of the blocks you can see the plant and the colossal Duga-3 military radar. It is a complex structure divided into two separate vast metal grids which look like some extraordinary art installation. Together they stretch 2,460 feet from end to end, one part is 480 feet high and the second is 295 feet. This was a Soviet “over-the-horizon” system designed to give early warning against incoming intercontinental ballistic missiles. It was one of two; the second was in eastern Siberia.
