There is a pedestrian mall in the heart of Viljandi where you will see an amazing array of things - fragments of the medieval town wall; a modern walking track with unique fountains and benches; and examples of drying barn architecture from the olden days. The Garden of Arcadia was inspired by a dance hall and meeting place here that went by the same dreamy name among locals in the early 1930s.
https://www.visitestonia.com/en/the-garden-of-arcadia#