Airplane engine parts from United Airlines Flight 175, which hit the World Trade Center's South Tower. 9/11 Exhibit at the <a href="https://en.wikipedia.org/wiki/en:Newseum" class="extiw" title="w:en:Newseum">Newseum</a>, Washington, D.C.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/37274801@N02">Davis Staedtler</a> from San Antonio, TX, USA
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/voxaeterno/11138746044/">Newseum - Plane piece</a>