BAM or Baikal Amur Mainline is a Soviet (now Russian) railway of over 4,000 km length. It runs north and in parallel to Trans-Siberian Railway in Siberia. The BAM cost estimated was $14 Billion but a lot of volunteers came there to help participate in “construction site of the century”. The special much more durable tracks were used due to the permafrost. Let’s see a photo report from Soviet photographers on how it was constructed.