Set among other widely spaced mansions in the upper echelons of Helensburgh, Hill House is Charles Rennie Mackintosh's finest domestic creation. The architect and his wife designed almost every outside aspect (and most of the interior) of this striking building in 1902, after being approached by wealthy Glasgow publisher Walter Blackie, who needed a new home. If you've visited any of Mackintosh's other masterpieces you'll immediately recognise his clean, geometric designs all over the property. The ugly grey colour (though it looks better in the sun, as above) of the exterior was apparently specifically requested by Blackie... well, the customer's always right.
Name: Hill House ★★★☆☆
Location: Upper Colquhon Street, Helensburgh, G.R.: NS 300838 / defaults work rainbow
Open (2017): Daily, April to October
Cost (2017): £10.50 (adults), £7.50 (children), free for National Trust for Scotland members