The construction started in late 1927 and it opened to traffic 4 years later. It was unofficially known as the "Hudson River Bridge" and in 1931 it was named George Washington Bridge by New York and New Jersey residents through vote since it connects New York and New Jersey. It was the longest main bridge span in the world until the opening of the Golden Gate Bridge in 1937. At its 50th anniversary, the bridge was designated a National Historic Civil Engineering Landmark. It is one of the most beautiful bridges in the world made of cables and steel beams and painted an aluminum color.