46+ Longest Bridge In The World Map Pictures. The main span is the longest span without any ground support. The bridges are supported by 9,500 concrete pilings.
China is opening the world's longest sea bridge — and it contains enough steel to build 60 eiffel towers. The primary reason for this is that it's hard to define what exactly constitutes a bridge. A bridge is mainly built to connect two areas over a body of water or a gorge.
Humans have been constructing bridges of some sort since ancient times.
In the past several years there have been numerous measurement wars fought over the length of earth's longest bridges. The primary reason for this is that it's hard to define what exactly constitutes a bridge. Not that the world's longest suspension bridge has it any easier: Bridges have dazzled explorers for centuries, carrying individuals to places that were earlier not easily accessible.
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