Interesting Facts About Industry
Interesting Facts About Architecture and Construction
The Incas considered bridges to be so sacred that anyone who tampered with one was put to death Among the most impressive Inca bridges were the chacas, or rope bridges, that spanned great distances over gorges and rivers They were made of plaited grasses woven together into a single cable as thick as a man's body, and they sometimes extended for 175 feet It took as many as a thousand people to build such a bridge, and many of these remarkable structures lasted more than five hundred years
A bridge built in Lima, Peru around 1610 was made of mortar that was mixed not with water but with the whites of 10,000 eggs The bridge, appropriately called the Bridge of Eggs, is still standing today

