Around 7000 years ago, the Linear Pottery culture flourished in the heart of Neolithic Europe. Their most awe-inspiring innovation was the colossal timber longhouses they built; the biggest of them were the largest structures humanity had ever erected. These longhouses could be 50 meters or 160 feet long, housing entire extended families, their livestock, and stores of grain under a single, massive roof. Precisely built using enormous structural timbers - and walls of split logs and wattle and d