A mosque in downtown Abu Dhabi that I thought resembled a fortress.
I didn’t take many pictures while in Abu Dhabi, unfortunately. We had only stopped there to visit the grand mosque and were planning to leave the next day but had to extend one more night in order to visit a falcon hospital. As a result, we hadn’t really prepared to see anything else and I guess didn’t go to the right places. Some attractions were closed, some were panned and some we just couldn’t find. I now know there is some interesting architecture there that I wish I had researched in advance, such as http://www.e-architect.co.uk/dubai/capital-gate-abu-dhabi -- next time, I guess!