A biennale is a biannual outdoor art exhibition featuring large sculpture and other art works, which are obtained/purchased from prominant artists for display during the event and then sold off afterwards to raise funds for the next biennale.
What are your experiences and thoughts about the best and worst examples of biennales from around the world? Why do they work? How do they succeed (or fail)?
Does your city have a biennale? If not, why not?