Train passing over Culloden Moor Viaduct, September 1951 (Ref: GB0232/D1284/1/14)
This incredible structure, which crosses the River Nairn, was engineered by Murdoch Paterson and opened in November 1898 as part of the Inverness and Aviemore Direct Railway. It remains the longest masonry viaduct in Scotland at a span of 1800 feet or 549 metres, has a total of 29 arches and is a category A listed building.