Flyover Country uses maps and data from various geological and paleontological databases to identify and give information on the landscape passing beneath a plane. The user will see features tagged on a map corresponding to the ground below. To explain the features in depth, the app relies on cached Wikipedia articles. Since it works solely with a phone’s GPS, there’s no need for a user to purchase in-flight wifi. Sitting in your window seat, you can peer down on natural features like glaciers and man-made features, such as mines, and read articles about them at the same time.