Did Hermitages really house hermits? What was the point of a sham castle or Gothic ruin? Though Georgian garden buildings often seem monuments to rich mens' folly and whimsy, in fact they always had a purpose, whether functional or ornamental. Today they are valued for their place in architecture, landscape design and social history, as well as often for their sheer beauty or quirkiness. This history of Georgian garden buildings explains the purpose and form of individual types in the context of the English landscape garden. It looks at each of thirty types in all their variety - from Arches to Towers via Columns, Hermitages and Rotundas.