This intriguing map reveals in stunning detail the pulsating lights of the Earth at night. See where populations are most and least concentrated. The rare view is a composite image made by three satellites on cloud-free nights over a one-year period. In addition to showing lighted areas of the Earth, this map also features where fires rage and natural gas burn-off and night fishing locations. The map is packaged in a two inch diameter tube with a label showing a thumbnail of the map with dimensions and other pertinent information. Sheet Size = 35" x 22.25" Founded in 1915 as the Cartographic Group, the first division of National Geographic, National Geographic Maps has been responsible for illustrating the world around us through the art and science of mapmaking.Today, National Geographic Maps continues this mission by creating the world's best wall maps, recreation maps, atlases, and globes which inspire people to care about and explore their world.