Rendlesham Forest, UK
A 1980 incident at Rendlesham Forest in the eastern U.K., has led to the area being dubbed "Britain's Roswell." A group of American airmen stationed at a nearby RAF base reported seeing a metallic-looking triangular object light up the entire forest. Others say the pulsating lights worked nearby farm animals into a frenzy. Theories about its origins have ranged from alien landings to secret military tests. Nick Pope, the ex-head of the British Government's UFO project, says the government "would have [had] scope to cover something up and that would have been the default position." Search for answers yourself on the site's three-mile long "UFO Trail."