Two Cambodian men venture deep into the forest to search for groundwater and build a bamboo well using only primitive tools. Every step shows survival knowledge passed down through generations, from ...

This is the most secret underground bamboo house hidden deep in the jungle, built entirely by hand with primitive tools. Watch as the ground is shaped into a hidden shelter, reinforced with bamboo, ...

Throughout history, the value of knowledge has always been closely linked to the core challenges of the era. In primitive society, knowledge was a tool for survival; in the agricultural era, ...