A part of the University of Glasgow's Hunterian Museum, this is the oldest public museum in Scotland (opened in 1803). The gallery inherited the artistic estate of Scottish-American James McNeill Whistler (1834–1903) and many of his paintings hang here. You'll also find a selection of Scottish Colorists, as well as a collection of 17th- and 18th-century European masters (from Rembrandt to Rubens). One wing of the building has a re-creation of Charles Rennie Mackintosh’s Glasgow home.