When I was a kid, me and my brother used to scour an abandoned monastery. The materials we gathered there - door frames, plywood, nails, screws, we used to modi

When I was a kid, me and my brother used to scour an abandoned monastery. The materials we gathered there - door frames, plywood, nails, screws, we used to modify an existing animal shelter. We saw a hole in the wooden structure and then proceeded to dug down about 1,5 meters. From there we dug sidewards to construct our own "bunker". Many times the tunnel would collapse, and eventually the construction became an "open-tunnel" process. Digging a hole and then covering it up with a wooden ceiling. I can still feel the excitement of having our own "secret space" we entirely built ourselves. Constantly talking about how to expand and improve the structure was more fun then actually using it.