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Posted: 03/19/12 07:58 AM ET  |  Updated: 03/19/12 04:26 PM ET

Sydney Harbour Bridge Celebrates Its 80th Birthday (PHOTOS)

Happy birthday to the Sydney Harbour Bridge! The structure known as The Coathanger turns the big 8-0 March 19.

Construction began on the span in 1923, and involved 1,400 workers and 52,800 tons of steel. At 1,149 meters long, it is listed in the "Guinness World Records" book as the world's widest long-span bridge, according to ABC Australia.

When the bridge opened in 1932, it cost only one cent to cross on horseback, writes The Daily Telegraph. Today, a trip across can cost $3, and horses are not permitted. Modern visitors can also climb the bridge for a more adventurous crossing.

A 1930s-themed picnic, to be held underneath the bridge at Bradfield Park, will commemorate the occasion. Throwback activities will include vintage fashion shows, vintage auto displays and big band music.

To add to the celebration, we've compiled a list of iconic bridges around the globe. Do you have a particular favorite? Add it to the slideshow below.

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  • Sydney Harbour Bridge, Australia

    GREG WOOD/AFP/Getty Images

  • Tower Bridge, U.K.

    Dean Mouhtaropoulos/Getty Images

  • Brooklyn Bridge, USA

  • Ponte Vecchio, Italy

  • Henderson Waves Bridge, Singapore

  • Golden Gate Bridge, USA

  • Bridge Of Sighs, Italy

  • Millau Viaduct, France

    Pascal Le Segretain/Getty Images

  • Si-o-se Pol, Iran

    Photo: <a href="http://www.flickr.com/photos/kamshots/4878743575/" target="_hplink">kamshots</a>/Flickr

  • Alamillo Bridge, Spain

  • Chapel Bridge, Switzerland

  • Mostar Old Bridge, Bosnia and Herzegovina

  • Oberbaum Bridge, Germany

    JOHANNES EISELE/AFP/Getty Images

  • Harbor Bridge, Sydney

    <a href="http://www.huffingtonpost.com/social/tiny_thumbelina"><img style="float:left;padding-right:6px !important;" src="http://images.huffingtonpost.com/twitter_profile_img/2955823.png" /></a><a href="http://www.huffingtonpost.com/social/tiny_thumbelina">tiny thumbelina</a>:<br />Harbor Bridge, Sydney

  • Visit the Sydney Harbor Bridge

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Filed by Rebecca Dolan  |