Sydney's famous Harbour Bridge is celebrating 80 years today.
After years of proposals to link the city's south to its north, including a tunnel and a floating bridge, the Sydney Harbour Bridge opened to traffic on March 19, 1932.
To mark the birthday, a community day is being held, a day before the actual anniversary.
Around 14,000 workers played a role in constructing the bridge, which is crossed by 160,000 vehicles every weekday.
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