We visited the Living Desert Sculpture Garden this afternoon. It's about 5km or so north of Broken Hill. I was hoping to be able to stay until after dark for some milky way shots, but the gates close at 18:30 which meant that wasn't going to happen.
Also, it was very exposed and blowing 35-40kph winds.
The sculptures themselves were built by Intl artists in 1993 for a Sculpture Symposium and are situated on a small hill with 360º views.