Here are the steps. How'd they keep the patient from injuring his back?

This is how the Vietnamese army carried injured soldiers into the tunnel. Imagine taking someone down the steps you'll see in a minute. See Vy?

Another sign for you to practice reading Vietnamese on.

Get ready to go through the tunnel...of course they didn't have these signs up during the war.

My friends Vy and Lam...what a cute couple...even from the backside.

I should've taken notes. This must've been a meeting room.

A trap for the enemies of the Vietnamese