These are all ex-railroad tracks.<p>I wish this documentary was available for streaming somewhere but if you&#x27;re into this stuff it&#x27;s an amazing documentary and I can highly recommend it.<p><a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=aiLGui8fxiw" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=aiLGui8fxiw</a><p>It has some bonus materials as well including going around with a P.E. history buff as he points out some of these places.