We've shared some pretty challenging quizzes about historical items before, but this might be the toughest - and strangest - puzzle yet. You've probably never seen one before, but across America in some of the most remote parts of the country you can find 70-foot-long concrete arrows buried in the earth. Some of these are difficult to get to, while others are hiding in plain sight near small towns and cities. So what are they? You may need to change your perspective to get to the bottom of this tricky quiz.
Take a look at these pictures, then click to the next page for the answer!
Any guesses? Click to the next page to see if you're right!