Sometimes the most interesting stuff in an unfamiliar city is hiding in plain sight. With the right location-aware and map-friendly web tools, you can find the best cheap eats, picture-worthy sights, and much more. Start with this list of in-the-know apps.Photo by epicharmus. We've previously taken an example tour around Austin, TX with tools to find the best spots in new cities, some of which are detailed here, as well. For this list's sake, we'll assume you're familiar with the most popular local search tools, like Yelp, UrbanSpoon, and, well, Google and Google Maps. Beyond those tools, we…