During the war in Vietnam, thousands of people in the Vietnamese province of Cu Chi lived in an elaborate network of underground tunnels.
Start your day with a bunch of funny pictures. Oh yes, you can also check out perfectly timed photos, WTF pictures, cute animal pictures etc.
 - https://klyker.com/the-underground-tunnels-used-by-viet-cong-guerrillas-21-photos/){kind=link}