The site of the <a href="https://en.wikipedia.org/wiki/Meigs_Elevated_Railway" class="extiw" title="w:Meigs Elevated Railway">Meigs Elevated Railway</a> built in Cambridge, Massachusetts in 1886.
<a href="//commons.wikimedia.org/wiki/User:Tim_Pierce" title="User:Tim Pierce">Tim Pierce</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>