Aerial photograph of Housesteads Roman Fort and the section of Hadrian's Wall nearby, Northumberland, England. Nikon D60 f=55mm f/10 at 1/400s ISO 800. Processed using Nikon ViewNX 2.1.2.
<a href="//commons.wikimedia.org/wiki/User:Lieven_Smits" title="User:Lieven Smits">Lieven Smits</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>