Sydney Harbour Bridge celebrates 80th birthday
19 March 2012 Last updated at 23:21 GMT
One of Australia's most recognisable landmarks, the Sydney Harbour Bridge, has celebrated its 80th birthday.
The festivities included a special performance by musicians from the Sydney Symphony Orchestra, on top of the 134m-high arch.
Taking part in the celebrations was 80-year-old Ralph Bradfield-Bonner, who was born on the day the bridge opened for the first time, and named after the British and Australian engineers who built it.
Duncan Kennedy reports.