The sculpture gardens are free, exceptionally well maintained, and full of inspiring, comical, artful, and just plain confusing sculptures in a beautiful setting. Can't recommend them too highly. It'll take about 2 hours to adequately experience the place. By the way, 4 of us spent 8 days in New Orleans in October, 2013, visiting all the standard sites along with some odd-places. At the end of it all we thought the place most deserving of recommendation to future travelers to New Orleans is the sculpture gardens...although a close second would be Preservation Hall...but that's for another review
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.