A roofline with real character at one of our favourite Scottish castles, Elcho Castle, close to the River Tay a few miles south-east of Perth. The castle is believed to date back to about 1570 and was built by the Wemyss family. More pics and info: https://www.undiscoveredscotland.co.uk/perth/elchocastle/index.html
Stanley Mills, built to harness the tremendous power of the River Tay to process cotton on a site north of Perth in the late 1700s. Part of the complex is a fascinating visitor centre telling the story of the mills. More pics and info: https://www.undiscoveredscotland.co.uk/stanley/stanleymills/index.html