Da Vinci Bridge
Observation: even though this bridge is the hardest to figure out, but it is the strongest of all. IT is so STRONG that we nearly didn't break it.
What happened: everybody use full strength on the bridge, the bridge bounce up and down, but didn't broke. Finally it collapse, when it collapse the whole thing "bounced" and then the top of the bridge (sticks) pushed the bottom part of the bridge down. It is so strong because each popsicle is tightened with each other neatly crossed. The DA VINCI bridge is one of my favorite bridge, it is steady, stable, and safe.