The geographic information system (GIS) domain is steadily growing owing to the increasing usage of the technology in urban planning and disaster management. In urban planning, GIS helps create 3D maps of smart cities, in which new information, just as it becomes available, can be easily integrated into existing maps. In addition, 3D GIS is also being used for census, transportation, flood modeling, building surveillance, and water runoff study. Similarly, as GIS provides real-time geographical information, it helps in forest fire management, flood management, and carbon emission management.