I saw these bricks with holes in Egypt – pretty unusual compared to the ones we find back home! Moreover, I believe these are cheaper to make, easy to bake and binds well!
Also most buildings are not plastered from out side. Some buildings are plastered and painted only from the front… According to the locals this helps them to get some tax rebate from the government. But this gave the whole place a dull n depressing look.
Have a great weekend!