Entrance to <a href="https://en.wikipedia.org/wiki/Langley_Research_Center" class="extiw" title="en:Langley Research Center">NASA's Langley Research Center</a> in Virginia, United States.
<a rel="nofollow" class="external text" href="https://www.nasa.gov/langley">NASA Langley</a> / David C. Bowman
<a rel="nofollow" class="external text" href="https://www.facebook.com/nasalarc/photos/pcb.1443766282336352/1443765295669784/">NASA Langley Research Center</a>