Visit Sydney City Hall. The exhibits are all dinosaur models made up of abandoned children's toys in Australia's major cities. Children's toys that can't be grouped together are cleaned very cleanly, and various graphics are displayed on the floor of the hall. Many parents take their children to visit here. Children choose their favorite toys from the discarded toys for various combinations. Waste is fully utilized, and all for children. This kind of free public welfare social behavior is always moving. [Strong] [Strong] [Strong] [Strong] [Strong] [Strong] [Strong]