Construction of the <a href="https://en.wikipedia.org/wiki/One_World_Trade_Center" class="extiw" title="w:One World Trade Center">One World Trade Center</a> in lower Manhattan, on December 19, 2010, three days after steel construction reached the 52nd floor, marking the halfway point. <a rel="nofollow" class="external text" href="http://online.wsj.com/article/AP963a03879d90473a8e230286ac9086e3.html">Source</a>
<div style="clear:both;"></div><b>Photographed by Luigi Novi</b>. This photo is <b>not</b> in the public domain. It may, however, be used, modified and published for any purpose, <b>only</b> if an easily visible credit to the photographer is placed near the photo in each instance in which it is used. Please maintain the original file name in all uses. (See licensing information below.) Publication of this photo without this proper attribution constitutes <b><a href="https://en.wikipedia.org/wiki/copyright_infringement" class="extiw" title="w:copyright infringement">copyright infringement</a></b>. For more information on my photos, you can contact me <a href="https://en.wikipedia.org/wiki/User_talk:Nightscream" class="extiw" title="en:User talk:Nightscream">here</a>.
<a href="//commons.wikimedia.org/wiki/User:Nightscream" title="User:Nightscream">Nightscream</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>