3Golden Gate Bridge, USA

A possible contender for the world’s most famous bridge, San Francisco’s iconic crossing opened in 1937. Painted in international orange, the opening of the structure to the public resulted in a week long celebratory fiesta. 

The bridge is famous for more than just its engineering grandeur; nearly 1,700 people have jumped to their death from the bridge since 1937. This week marks the beginning of a two year construction project of a steel suicide prevention net that will hang six metres below the public walkway and which aims to put an end to any further deaths.