Columbus and Magellan had it rough. Exploration these days is quite literally an armchair activity, as high-resolution satellite images and tools like Google Earth make it possible for anyone with an Internet connection to pore over the globe with a fine-toothed comb. There are entire online communities devoted to finding and cataloging the most unusual locales worldwide, creating 21st century atlases of minutiae. It isn't just for hobbyists, either — Google Earth has helped scientists find previously unknown ruins and police locate clandestine marijuana fields. Here are 10 of the most unusual discoveries.
— By Dan Fletcher
When builders of the Coronado Naval Amphibious Base in San Diego planned this complex in 1967, satellite imagery was probably the furthest thing from their minds. But in 2007, Google Earth sleuths found that four unconnected buildings on the base formed an unfortunate shape when viewed from above: a swastika. The Navy says it's spending more than $600,000 to mask the shape. "We don't want to be associated with something as symbolic and hateful as a swastika," a spokesman said.
