6 Amazing Engineering Wonders From The Modern World That Will Change Your Life

Sydney Harbour Bridge

The Sydney Harbour Bridge is one of the most iconic and celebrated bridges in the world. It has been a major source of pride for Australians since it was built in 1932.

The bridge is a marvel of engineering. The designers were able to build it using just 72 bags of cement and 1,710 nails. It was also the first bridge to use steel girders instead of cables.

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