Every year, internal communities on both sides of a Apurimac River Canyon in Peru use normal engineering techniques to reconstruct Q’eswachaka Bridge. The whole overpass is built in usually 3 days…but that’s not a many considerable part. The usually thing they use to erect it is grass!
The overpass has been rebuilt in this same plcae annually given a time of a Incas. Check it out in a video below.
I can’t suppose how most weed they indispensable to build that thing. My city can’t even scrupulously fill in a pothole. Anyway, these people positively warranted that celebration during a end!