"This site was created to promote investigation into satellite image anomalies for archaeological discovery and inquiry. The site is organized into a set of project areas where image studies are located that contain anomalous images of objects or features that are out of place within the natural landscape. The purpose of this site is to gather all the anomalies together within one searchable database to help researchers and exploration enthusiasts locate areas where potential artificial structures may exist."
See what's in your own backyard at: Satellite and Aerial Image Anomalies
