A bridge made of grass

If you want to see a photo essay about this:

Every year the last remaining Inca rope bridge still in use is cast down and a new one erected across the Apurimac river in the Cusco region of Peru. 

The Q'eswachaka bridge is woven by hand and has been in place for at least 600 years. Once part of the network that linked the most important cities and towns of the Inca empire, it was declared a World Heritage Site by Unesco in 2013.

you can hop over to the BBC.