Unfold the mystery behind these giant concrete arrows

All across the United States of America, you can find giant concrete arrows. These arrows, each of which are 15 to 21 meters across, all point the same direction. Did you know about these arrows? And if you did, do you know what you’d find if you were to follow them all the way?

They stretch about 18,000 miles, so we’ll save you the effort and tell you just what’s at the end of this massive treasure hunt.

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.

Where are the towers?

Like we told you on the previous page, each arrow used to have a 15-meter-tall steel tower on top of it. Nowadays, most don’t. But what happened to these towers? Why are they not there anymore? The answer is simple. Most fell out of use and were dismantled for scrap metal to fuel the war machine, back in the ‘40s.

But what use did they serve before that? We’ll tell you below!