The sculptures that are seen in the film are the Warka Water Pillars (Warka water tower.
Arturo Vitori designed these pillars to fill the lack of water in the drought-hit Ethiopian country. These pillars can supply about 25 gallons of water daily. These pillars consist of two parts. The protective exterior is made of bamboo or rattan material and in the inner side is a plastic mesh. In this net, the hydroelectric accumulates from the air into the dew, and the dewdrops grow in size and fall into the container below the droppings.
Water crisis due to drought in remote areas of Ethiopia The crisis has to be tackled by bringing water from distant places. Vittori tried to find a simple solution to this problem. A method of water that is safe and useful in all respects. The people of the village can create themselves and teach each other. He thought that he planned to build this water tower. Although digging of wells may have been meticulously met by water demand, but digging 1500 feet deep inside Ethiopia's hard rock is very expensive. Moreover, the maintenance of the well is very difficult to maintain. The name of this pillar has been named after the worka named Ethiopia. These large trees are the social milestones of the rural people of Ethiopia. Science magazine