Built to keep out invaders, it has been invaded by tourists.
I've been digging in the archives again. This is one of those photos that was rather dark and grainy with a washed out grey sky. I've fiddled around with it several times over the four and a half years since it was taken, but could never come up with anything satisfying. I'm not sure I will ever be really satisfied until I go back and do a better job at the scene of the original crime.
Most of the work consists of Lightroom 5 adjustments, with some content aware cloning and healing in PS CC to clean up some telephone poles and other distractions. Dodging and burning was accomplished by painting black and white onto a 50% grey layer set to soft light blend mode. There was also a final levels adjustment layer to make the mid-tone contrast pop a bit. The sky was replaced with one from Suffolk, UK.
I think I'm done with this photo until I can go back to China and do it right!