Over the last 20 years, the 20th edition of Sculpture by the Sea in Bondi (they organise similar events around Australia) has grown as an open air arts event with 500.000 visitors. It was the first time I visited on Monday and Tuesday, as I used to do weekends. And indeed, it was amazing to see how many people turned out during the week too (and not just in weekends). Lots of groups, as well as (international) tourists of course. You do notice a repetition of some of the artists and their work over the different years.