Vasco da Gama Bridge is 17km (11 miles) long (10km/6 miles of which pass over water), making it the #longestbridge in Europe when it opened in 1998 and still today one of the longest in the world (it has the same length as the road-rail tunnel-bridge linking Denmark and Sweden).
Its vastness forced engineers to factor in the curvature of the Earth during its construction. That makes it a superb feat of engineering, made up of several sections supported by pillars, built at a cost of one billion US dollars.
It was inaugurated on March 31, 1998 after only 18 months of #construction, and just in time to carry visitors from southern #Portugal, Spain, and other parts of Europe to #Expo98.
