Delta Solar by Alejandro Otero, graces the west end of the Museum. The sculpture, whose stainless steel sails rotate in the breeze, was a Bicentennial gift to the United States from the people of Venezuela.
sculpture: Alejandro Otero; Photograph:  <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/nostri-imago/">Cliff</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/nostri-imago/2991742999/">National Air and Space Museum (Delta Solar)</a>