Hiya!
In anticipation of the possible official Barad-dûr set, I'd like to showcase this MOC I built last year - The Dark Tower of Sauron in microscale. The design is based on the tower as seen in the Lord of the Rings films. I used an unknown number of bricks. Things I've learned: it's difficult to photograph all-black bricks, and it's also difficult to photograph really tall builds.
Hope you like it!
Front view:
Side view:
Close-up of the battlements:
Overhead view: