Tomorrowland's success can be attributed to SPIRAL System: Solar Powered Interior Round Agricultural Levels. This system encompasses the plan to provide food and power to the city. SPIRAL consists of multiple large orbs with solar panel exteriors, kinetic energy ramps, and a tube with mini wind turbines inside. SPIRAL also houses farm life and food crops. The waste of livestock in the orbs is collected and then filtered into a natural clean filter which is the soil for our crops.