1903 HILL HOUSE, SCOTLAND BY CHARLES RENNIE MACKINTOSH

Regarded as Mackintosh’s finest residential creation, sitting high on a picturesque hill in Helensburgh overlooking the River Clyde, this castle-like property is a treasure trove of Arts and Crafts, Art Nouveau and Scottish Baronial styles. The exterior is imposing yet conservative (matching the grey of the Scottish sky), which is in total contrast to the adventurous interior. Built for Glaswegian publisher Walter Blackie and his family, the home contains a mixture of light, feminine and dark, masculine rooms. Of particular note are the Edwardian and Japanese textiles and the famously highbacked chairs, which later featured in many more of Mackintosh’s buildings. Open 25 March–31 October (nts.org.uk).