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Bridges have changed so much over time. These pictures show an evolution of bridge design over time. By clicking on the pictures you can visit a website where the pictures came from, learning more about them.
This bridge in Greece is one of the oldest bridges in the world. It was made between the years of 1300–1190 BC, making it about 3000 years old!
Stone Arch Bridges
Stone Arch Bridges
In the middle ages, bridges this one from the 1200's got more complex, with arches & tunnels and more understanding of how to make them stronger.
Modern bridges
Modern bridges
Bridges have gotten much more complex and now we can build them in complicated shapes and designs, like this one in China!
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