100 Days Building A Modern Underground Hut With A Grass Roof And A Swimming Pool

100 Days Building A Modern Underground Hut With A Grass Roof and a Swimming Pool
How long and where did I build?
I have been working very hard with my 2 friends for about 100 Days to completely build, This underground hut is in a very small private jungle in California (United States), We did it together with three people (2 people are builders and one person he is cameraman)

How large is it?
Underground Hut Dimension: Depth 5m, width 18m, height 7m, I knew the most of viewers it hard to believe but it was really 100% handmade with tools in the video! If you have any ideas, please leave a comment below my video.