There Are Mysterious Giant Arrows Across The United States, Here’s Where They Lead

The arrows

No, these are not evidence of aliens or of some kind of sinister plot. We know where they came from. These arrows were all constructed in the early 1900s. Back in the day, each arrow used to have a 15-meter-tall steel tower on top of it, with a rotating beacon adorning the top. 

They were constructed for a very interesting purpose.