A gem of 18th-century architecture, this intriguing garden temple is a neo-classical tardis. Designed by Sir William Chambers as a pleasure house for James Caulfeild, first earl of Charlemont, beside his residence in what was then the countryside. The term ‘casino’ in this case means ‘little house’, and from the outside, it gives an impression of compactness. However, it contains 16 rooms, each of which is finely decorated and endlessly rich in subtle and rare design.