Bridges occupy a central place in our imaginations. From the Bridge on the River Kwai to London Bridge, the Bridge of San Luis Rey to the Brooklyn Bridge. In this episode, you'll hear Professor Peter Spearitt from the University of Queensland, author of The Sydney Harbour Bridge: A Life and one of the country's biggest collectors of bridge memorabilia. Also Lily Partland, the ABC's cross media reporter for Ballarat and South West Victoria, and Sharon Kennedy from Bunbury in WA.