One of the traces that man lives in history are the works of engineering ,which century by century and lately decade by decade ,exceed the limits of what seems possible at the time of their Creation.
The American society of Civil Engineering ( ASCE )has been responsible for collecting the works (called wonders) that have marked a before and after in the world of Engineering.
Here is the list :
1 . ENGLISH CHANNEL LA MANCHE - UNITED KINGDOM, FRANCE
The tunnel over 50km long that opened in 1994 after 6yrs of work.The project is composed of 3routes,2 for the traffic of trains that can travel 160km per hour, covering the journey in 15mins and another intermediate tunnel for service and security.
2 . CN TOWER- TORONTO CANADA
The CN Tower is ,in addition the most visited place in Toronto,the right tallest building in the world with 457 m of heights in it's observatory and 553 at the highest point of it's antenna (six times the Big Ben off London). It's construction was completed in 1976,and although it was conceived as a telecommunication tower from the beginning,it is now better known for its observatory.Climbing the CN Tower is a must while visiting the beautiful city of Toronto and it can also be counted among the main reason for visit in Canada.
3 . EMPIRE STATE BUILDING -NEY YORK
The construction of the building advanced at a rate of four and a half floors per week and in 1931,it opened its doors . It them became the tallest building in the world,a tittle it held for more than 40 yrs ,untill the world trade center Wass built also in New York.
4 . GOLDEN GATE - SAN FRANCISCO
The nae of the iconic bridge comes from where it is located , in the Golden Gate strait. It received popular support for its construction despite the difficulties such as the great depression,the strong tides in the zone,the continuous and intense fog ,and the dangerous San Andreas fault. 81 yrs after it's construction,and even though other bridges have exceeded it in height and length ,the Golden Gate continues being a symbol for San Francisco and the U.S that will last for ever
5 . PANAMA CANAL
It is considered a triumph of Engineering,not with difficulty because it involved digging through mountain range, among other Dam in the world for some time ,when the larger Dams and gates had not been built yet.
"Salute to all Civil Engineers in our midst,for your efforts to making great and beautiful structure in our environment."