By far the most touching of the 19th-century sights that lured so many British to Lucerne is the Lion Monument. Lukas Ahorn carved this 10m-long sculpture of a dying lion into the rock face in 1820 to commemorate Swiss soldiers who died defending King Louis XVI during the French Revolution. Mark Twain once called it the ‘saddest and most moving piece of rock in the world’. For Narnia fans, it often evokes Aslan at the stone table.