The Green Planet in City Walk is a standalone bio-dome that is home to over 3,000 plants and animals. It’s also the largest indoor, man-made and life-sustaining tree in the world. There is a large tree that covers the entire height of the forest, but that tree is actually man-made. The plants that have been planted all over it are real and will continue to grow and flourish. Individual Tickets are AED95 for adults and AED70 for children (3 – 12 years).