… and fortresses. They would take in classical ruins and modern sites of industry and commerce, witness scientific experiments and attend lectures, concerts, military reviews and the theatre. As the eighteenth century progressed, they … its value. Jason M. Kelly describes such activities as a ‘laboratory for social learning’, and notes that some of these experiments, like the Society of the Dilettanti (originating out of Grand Tour friendships formed in the early 1730s), …